Data Recovery Daquan default section default part!

Complete data recovery.


William Smith, a computer security expert, said: "Creating the data may only spend 10 million, but when you are at a critical moment intend to put them to come back, you have to prepare for one million yuan in check.". .


And if you have mastered the skills of data recovery, you can save the $ 1 million, and even from other people who earn $ 1 million!..


Now, we were approached by the millions of dollars worth of technology, you will find that this seemingly mysterious technology is not too difficult to master. .


Hard drive valuable data is priceless.


Valuable data is priceless and hard, perhaps many people have such a concept, but only encountered in real data will have personal experience when the crisis, following a few shots around the screen you may have happened. .


Lens 1: loss of $ 2 million in one night!.


Evening of 12 June 2005, Shanghai, an international shipping company formed by the three SCSI hard disk suddenly fails RAID5 disk array can not read. As this group of disk array data storage customers, so a breakdown of the company's business will be paralyzed. Night to save the data on the price paid 2 million yuan, of this company, their feelings on a word - "pain"!. .


Lens 2: defunct! lose much prestige. …


Dalian, a Credit Union server disk array damaged because of power supply system abnormalities, 由于 not timely back up the day before and day of Shu Ju, had to mobilize all night She Gongzuorenyuan reprint case by case basis according to fill account, and therefore closed down one day, Dao Zhi Ke Hu unknown truth panic, seriously affecting the reputation of credit cooperatives. .


Camera 3: a month of hard work wiped out.


Chongqing, a company bidding to hold the full range of program participation and notebook hard drives in the exhibition opening on the eve of a sudden break, causing the company's activities at the show greatly affected, in the end have been promising in return losing bid, the company down more than one all the months of hard work down the drain. .


Similar events almost every day. Data from accidental loss to the presenter is not only pain, and may result in substantial economic loss, or even permanent would result in the company.


Although the disk is stored in a variety of computer data is so important, but due to technical and technological reasons, the existence of any storage device the risk of damage. Operating environment changes and the deterioration of irregularities or torture-type operations, the destruction of the virus and hacker invasion, and the difficulty to avoid a variety of abnormalities, may lead to storage devices and software crashes scrapped. .


A strength of large companies, research institutions and Government departments can take advanced redundancy, fault tolerance, backup technology to reduce or eliminate computer failure resulting from the loss. However for most small and medium-sized enterprises and individuals, this technology is difficult to afford luxury.


Since we can not be protected at the system level, it can only be more effort in data backup and recovery tools have the necessary data. .


Save the data not only in the rooms.


Previously, data recovery is a highly professional work, the need for disk structure and a thorough understanding of file systems, can shuttle between the sector and the FAT table freely. To repair the database data and to decrypt encrypted files, but also must have excellent knowledge of database knowledge and processing to decrypt. Even now, many still rely on the data recovery professionals with specialized tools or equipment to complete, such as open the hard drive directly to read the disc. .


Because of the need to recover your data is extremely valuable, but also through other methods of recovery will have to pay the cost of more expensive, so the cost of data recovery is generally very high, spend the same amount of money lost on million or even a few hundred dollars worth of data on your hard disk is not uncommon things.


April 2005, the Shanghai company to restore the trade customer information, to spend 100,000 yuan professional data recovery company, please shots, before formal negotiations finally buttoned up a few million dollars to restore a large one. Since money is often full of legendary stories, so data recovery this business a long veil of mystery hangs over Inter in the data recovery technology has been touted as some others hard to peep game for the high-tech. .


In fact, this is not the case. As data recovery technology, as well as a large number of powerful data recovery software available, normally unattainable thing now non-professionals can reach. On common data loss or damage, such as accidental deletion or incorrect formatting, partition loss, disk bad road, such as low-strength encryption, under certain conditions, normal users can use data recovery software or password cracking software for data recovery or repair.


While most data recovery software there one way or another, but a variety of data recovery software utilization and master certain skills, most of the data can still be recovered. .


Save the data as business opportunities.


Popularity of Internet, the computer exposed to the more "dangerous" environment, the stored data in which the threats have multiplied. At present, SMEs and generally poor awareness of personal data security, computer reliability and security of our understanding of both the lack of trust too far, so even the basic data backup also neglect to do or too lazy to do, so easily lost and expensive data Find the best setbacks tragicomedy staged every day. .


Of course, from another perspective, this also means that data recovery is a huge opportunity. Many are designed to do data recovery company has come, some skilled individuals to get involved in one of our previously introduced a bit of data recovery and save the data of his career.


If you master all cases after data loss recovery techniques that can help users to quickly retrieve lost data, which means the opportunity to seize the potential business opportunities. In some major cities (Beijing, Shanghai, etc.) have a professional data recovery company, they are designed to help users recover lost data, and in some small cities, and no professional help for data recovery company. The Zai home, large medium and small cities Di ratio, in other words, Jishi Yijingchuxian Le Zhuanye based data recovery company, Dan Shi huge piece of cake Zhi You have to be someone else occupies a very small one, the rest of the Que yes big man. .


If you restore the data, on a variety of data recovery software uses a very understanding, may wish to do this is not a big pile of capital gains is very lucrative business.


Hands-on restoration of data should have the attitude and basic skills before. .


For some simple software class data loss, we do it yourself will be able to resolve the problem, not only can you save a large amount of cost, but also on your own computer level is also a rare opportunity. For hardware data recovery and complex server disk array data recovery, understanding its process also helps us choose the right data recovery service provider, and can be equipped with the most basic emergency response capabilities. Master the basic tool for data recovery will make you experience sudden disaster more calm and sensible solution to successfully save the data of nature.


Crisis mentality is also important. .


Once the crisis suffered data, maintain a quiet State of mind is very important, a flurry of is likely to cause greater damage was recoverable data becoming irretrievable. In fact, its own independent data to save millions of value is not a party to the Tan on the day, as long as you have some skills and methods properly, you may play in rescue data crisis hero role. Next, we will help you understand what data is recoverable, while providing the necessary basic knowledge and scientific and effective remediation steps, will be on the verge of destroying data step by step, the Save.


Remedy: what data can be saved. .


Data problems mainly consists of two main categories: logic problems and hardware problems, the recovery is also called software recovery and hardware recovery. Software recovery refers to the way through the software, data repair, the entire process does not involve hardware maintenance. Data loss is often due to virus infection, mistakenly formatted, mis-partition, cloning, accidentally deleted by mistake, power failure, etc..


The features of the software class failure: can not enter the operating system, files can not read, the file can not be associated with an application to open, file missing, partition loss, garbled display. .


In fact, cause data loss in the software category of complexity of each case has specific symptoms or symptoms appeared. In General, as long as the data has not been thoroughly covered area, individual users through the topic of learning, basically can be successfully restored. The most common of the delete operation, for example, in fact at this point, save the file on your hard disk has not been completely overwritten by some specific software method, in accordance with the master boot sector, partition, DBR, FAT, and the last file restored order entity to resolve.


Of course, should also be objective and recognize that, despite the class data recovery software, details of many of the skills and experience is difficult to express simple, but it does exist Jishu existing software can do nothing to restore the situation. If the hard disk data is fully covered or partially covered many times, it is possible to use any software beyond repair. As for the rumors that the U.S. industry some professional data recovery service providers to the data 7 times by the Qing Kuangxia buried the smooth resumption of data, such words are not research, but also from Cunchu principle of Jiaoduolaikan Qi unlikely prospect, otherwise, Our expansion drive it not easy to 7 times?. .


A good fundamental skills: hard drive data storage structure, it is necessary to distinguish between.


To restore the data, we must first come to understand the structure of hard disk storage in order to better suit the remedy to restore data. .


Just bought a hard disk, we have no way to use, it needs to be partitioned, formatted, and then install the operating system before it can be used. But in this process, to the hard disk into a master boot sector (MBR), the operating system boot record (DBR), FAT tables, DIR directories and Data to the data area of the five parts (such as maps, hard drive storage in five parts).


MBR (Main Boot Record) in the hard disk cylinder 0 track 0 sector 1. However, a total of 512 bytes in the main boot sector, MBR only takes up one of the 446 bytes, another 64 bytes to the DPT (Disk Partition Table partition table), the last two bytes " 55AA "is a partition of the end of the sign, the overall composition of the hard disk master boot sector. .


The master boot record contains a series of parameters of the hard disk and a boot program. One of the hard disk boot program's main role is to check the partition table is correct and complete post in system hardware has to activate the flag after boot partition operating system, and passes control to start the program. MBR is partitioning programs (such as Fdisk. .exe) produces, it does not rely on any operating system and hard drive boot programs also can be changed in order to achieve a coexistence of multiple systems.


DBR (Dos Boot Record, the operating system boot sector) is usually located in the hard disk cylinder 0 track 1, sector 1, is the operating system can directly access the first sector, which includes a boot program and a called the BPB (Bios Parameter Block) of the partition parameter log. The main task is to guide the process when the MBR to the system control to it, determine the root directory of this partition is not the first two files of the operating system boot files. If it is determined there, put it into memory, and the control to the file.。 DBR is advanced formatting (such as .com, etc. the program Format.) produces.


FAT (File Allocation Table, the file allocation table), is the operating system's file addressing system. To prevent accidental damage, FAT generally do two (you can also set a), the second for the first FAT FAT backup. The same file data is not necessarily completely stored in the disk of a continuous area, and often will be divided into several sections, the same as a chain store. As the hard disk maintains the connection between paragraphs and paragraphs of information, the operating system reading the file, always able to accurately find the location of the paragraphs and correctly read.。.


Data Recovery stunt to seven times your net worth rise. .


Seven classic cases, ten rescue method, as you uncover the professional data recovery company is the most commonly used data rescue ***, let you in a crisis can easily save the value of the same data, the value from this let you doubled!..


The master boot command to restore a value of 400 yuan. .


Currently, formal data recovery company to recover the data starting at typically 300 to 400 Yuan, but some simple fault we passed a few minutes to learn fully can solve, rather than sent to professional data recovery company.


Usually, once the master boot record and partition table is damaged, hard disk, can not access the data but did not lose. So we can use the software to repair damaged master boot so that you can find lost data. At present, many malicious attacks like the master boot drive and partition table, and sometimes the disk partition software misuse as well as half-way power can also cause this type of failure. .


Note: five stars being the highest level.


Case: June 8, 2005, Shanghai, a foreign trade company bosses laptop in the boot process of a sudden power failure, when the time starts again, the system through self Bing Jian Ce to the hard disk, but is about to enter the operating system to prompt "DISK BOOT FAILURE, INSERT SYSTEN DISK AND PRESS ENTER ". However, when the company's IT maintenance personnel do not know how this all-external laptop (no built-in optical drive and floppy drive) boot into DOS system, but there is no understanding for data recovery.。.


Failure Analysis: This is obviously a typical master boot failure, just a few minutes they can handle that. Such failure could take up to 30% of software failures, so learn to deal with the problem solution can be said to control an effective killer. Also to remind everyone that if self-test after boot prompt "Miss operation system" and that DOS can see the C drive under the full content, which is part master boot failure. If we can take the time to learn about simple, can resolve themselves. .


For this kind of software failure, you can use a floppy disk to boot the system. Then type: "C" and see if you can read the contents of the c drive. This is more complicated, the degree of the master boot sector damage, c drive can be read also cannot be determined. If the data in the c drive can read out, then we use the FDISK/mbr command to be unconditionally override key can usually be successful, and can retain the original data. . .


Figure 1.


Of course, even if not read the C drive, we can use the Fdisk / mbr command. In fact Fdisk / mbr's role is very clear and can deal with some of the master boot sector viruses, we must take advantage of this and is said to deal with the hard disk in the BIOS can not operate under DOS identification purposes of the first pieces of tools. .


Tidbits: in addition to the Fdisk hidden parameters, you can also use the Fixmbr this DOS gadgets. In the direct execution of the DOS file, the system automatically checks the partition table structure, after user confirmation after it began, and auto repair. With the Fdisk/mbr command, Fixmbr have better results, many of the Fdisk/mbr command does not solve the problem of the master boot sector can be easy to fix.


PCW tool spectrum. .


Software name: Fixmbr.


License: shareware. .


Software size: 12KB.


Download: http://download. . Pchome. .net/utility/antivirus/av98/6967. . Html. .


Partition table failure causes the file cannot be accessed.


Partition table of the concept than the master boot area is greater and therefore the fault condition is included in these major boot failure, also will be Ti Xianzai Jinru Caozuoxitong Hou Faxian Bufenfenqu missing, or the Disk Manager shows Cuowu capacity. Compared with the master boot, partition table is destroyed when the repair is relatively complicated. .


Case study: Mr. Zhang is the Chief Financial Officer, on a computer with Windows 98 and Windows XP-system. But recently wanted to remove the Windows 98 and merge partitions. But when using the PQ Magic mistake staggered under the restart the computer. When entering Windows 98 again revealed that the last two partition the hard drive capacity is wrong, and you cannot open the file. Because of his custody of financial data is very important, and suddenly anxious as hot. . .


Fault analysis: this should belong to the typical partition table fail, partitions table failure in a variety of software failures are common in occupies a whole software, approximately 30% of cases.


Auto Repair: Auto repair partition table of the operation generally is by looking back up the partition table and copy the corresponding sector. Here recommend you use the software DiskGenius written by the people. The software can run in pure DOS environment, and an intuitive interface to English, so it is not good for users is the best option. Jiang DiskGenius software copied to the DOS boot disk can then be run directly into DiskGenius the main interface, press the F10 can easily and automatically recover hard disk partition table, but this trick is very effective. .


DiskGenius will first search the head from the cylinder 0 0 2 sectors to begin looking for hidden sectors, moved by the virus of the partition table. Then search for each head first sector search process can use the "automatic" and "interactive" in two ways. Automatic mode suitable for most situations, it is recommended that you select this option. From the above, as well as on the master boot sector repair partition table, you can let a battered hard drive can be seen correctly under Windows partition, and then to other operations to lay a solid foundation.


Manual repair: In some cases, may not find any software backup partition table, this time only manually modify the. With the manual modification will be fully experience in WinHex software such as operating directly under the partition table data. Toshiba 30GB notebook hard drive with an example, after using WinHex to open the disk see the following interface. One from "80" began to "55AA" end of the DPT hard disk partition table are critical (Figure 2, WinHex shows DPT hard disk partition table). .


Figure 2.


Screenshots here show the hard disk partition table is intact, so no need to modify. But for a partition has been Pohuai De purpose of the statement, the end of its locations may Wanquan disorder, then we can by looking for the next "55AA" emblem Queding, since the beginning of the location of the next Fenqu forward over a sector that is on a The end of partition position. The basis of the head, sector and cylinder numbers and then converted into 16 hex, then use WinHex can write back. In addition, look for the next "55AA" the process may run into a lot of interference, it was suggested according to Determine the capacity of hard disk partitions.。.


PCW tool spectrum. .


Software name: DiskGenius.


License: Free software. .


Software size: 143KB.


Download address: http://www. . Skycn. .com/soft/3506. . Html. .


PCW tools spectrum.


Software name: WinHex. .


License: free software.


Software size: 990KB. .


Download address: http://www. .skycn. .com/soft/3688. .html.


10 minutes to save 800 yuan rang repair DBR. .


Under our preceding the DBR (OS boot record), it is produced by advanced formatter, it is also a section of code, the same information may be damaged, and will ultimately lead to a lack of access to the operating system, part of the folder information will be lost.


Case: Wang is a librarian, March 13, 2005, which is responsible for a computer suddenly can not open them in Windows, a partition, double-click the partition icon says "The partition is not formatted." Quickly called in after the head of IT into the DOS system, find a time to go to the letter, but once enter "DIR" command, the system will prompt "General Fail Reading Drive". Instrument allows for Wang dumbfounded, because it's data is the statistics for new books, if you lose the case, lead to disastrous consequences.。.


Failure Analysis: There is no doubt that the direct use of formatter to reformat to solve the problem (excluding physical bad sectors and virus interference factor), but this is to save the data with the ultimate goal is contrary. .


The underlying principle on DRB, you don't have to understand that while many online covers DiskEdit method does not work, you should use WinHex to overwrite the DBR template. Use recommended that exists in the hard disk as slave hook. Then open the disk when you select the WinHex, instead select a partition, so you can use a hard disk partition table information to process the partition, which cleverly bypassing the DRB. The next task is very simple, directly on the top right side of the "access" in the drop-down list, select the DBR of the partition failure, and then open the "start sector template." . Related pictures available http://www. . Cpcw. .com/xz/43g. . Rar download). .


Figure 3.


Figure 4. .


Zero track damage to soft beat hard to save data.


For the disk, the zero track is the most critical areas, because of the hard disk partition table information among them. Once the damage on track, then the hard drive will not start. In fact, physical damage on track but the special circumstances of bad sectors, the difference is very sensitive to damage of the Department. .


Case study: Northeast clothing design company SCSI single server stores the entire company's design, originally discovered this the hard disk has a mild bad road but did not cause the administrator attention, nor do the backup job. Finally 13 July 2005, the hard drive cannot be started, an administrator attempts to format the system partition is lost.


Failure Analysis: Scandisk scan through and found bad sectors is not that great, or even hang it as a slave in the other operating system can see part of geographical content. However, due to the location of bad sectors is very special, and cause the hard disk does not start. The inspection found that zero-track portion of the bad sectors, such failure must use the approach is different from ordinary bad sectors. .


For a physical hard disk from the easiest data recovery method is to set it up as a slave, and then use a second hard drive to boot to the operating system. In Disk Manager, we can assign it a drive letter. If the allocation succeeds, a possible direct copy can successfully recover data. If the number of bad road is unable to assign a drive letter, or copy always prompt an error, then we must use other methods.


Recommended to everyone here is a source called the efficiency of disk access tools. It is commonly used when dealing with bad sectors software (download address: http://www.. Cpcw. .com/xz/xly16.. Img), its characteristic is that it can be reproduced for the sector. With a 80GB hard drive, for example, if we already know the important data needed in the final partition, and the last partition of the capacity of 20GB, then the efficiency of the source copy software directly to the starting sector of positioning the location of about 70% termination of position for the final, so the copy process will avoid the front part.。 However, the operating system for hard drives of the reading process is rather special, once the existence of a large number of bad road may not recognize the hard drive partition. Through efficiency source software, we can easily these limits, but the software itself with strong replication features and the appropriate validation algorithm.


Usage: First, connect the hard disk and data recovery needs a good hard drive, then use source software with the efficiency of the system boot disk boot, then the efficiency of the source directly into the main interface of the software. Click the "Sector Copy" command, the efficiency of the source software will ask the input source and the destination disk, never the wrong time: the need for data recovery hard disk as the source disk, hard disk as the target well plate. Then, enter the Start and End to confirm the copy number of the starting sector location, and finally click on the "Confirm" button to start sector after replication, strong copy and correcting the specific power will automatically open, not individual user settings. .


After restoring the data, we can fix the hard disk, you should take to modify the hard disk partition table storage location, and then shielding bad road. In fact, DOS classic PCTOOLS 9. .0 (DE. .EXE) and NU 8. .0 (NDD. .EXE) that you can implement this functionality, but they do not support FAT32 and NTFS partitions, you can only recommend it again using DiskGenius.


In DiskGenius the main interface, we press the F11 function key, then a modified menu will pop up. (Figure 5, with DiskGenius modify the partition table storage location). .


Figure 5.


For guide signs and logos, you must not modify, this is the key to confirm the partition type. We focus on "repairing" is the starting cylinder, the initial stigma and initial sector. In general, the basis of the original value plus 1 can. If the modified parts are still bad sectors, so we can add a step by step, this capacity loss can be limited to the minimum extent. Then, we can re-partition and format the hard disk, and then you can install the operating system. If the hard disk at this time have been able to start properly, then our approach also declared successful, then do is use physical bad sectors PartionMagic shield. .


Tidbits: professional data recovery companies generally use PC3000 and HIE (Hardware Info Extractor), and other tools to copy a slice and use fans to cool down the hard drive (this is especially effective for IBM hard disk), and can usually be successfully exported data. Because a PC3000 work card, therefore it is very difficult to achieve a personal user, you can consider seeking professional data recovery service provider for help. In contrast, HIE is a dedicated hard disk replication tool, it can be hard drive data from the underlying implementation of genuine copy. . For bad sectors, sectors marked wrong, even in part very difficult to read and write disk, HIE will be stored according to their own hard disk repair procedures sectors processed it, and following the physical Fang Shi copy data from the hard drive out of except that they processing speed is very slow. HIE equipment currently priced at 800 yuan. .


Simple but expensive file by mistake, rescue techniques.


When we find the file named file is lost or the file is overwritten, even formatted partition is misuse and error, after cloning, you need to use disk-scanning method for data recovery. .


Case study: South China a design Institute of a server, bears the entire Institute storage tasks. 2 August 2005, as the administrator of the year 2004, will delete all of the data. Since then deleted is not placed in the "Recycle Bin", but rather directly, so it cannot find the ordinary method. In order to retrieve these data among administrators, panic at the time of the backup file to restore the Ghost, but recovery was found or there is no need to file, and put the entire file system and get very confusing. The ultimate in data recovery company, with the help of the Institute are successfully recovered data from 90% to be spent for $ 2000.


Failure Analysis: In fact, as a result of misoperation file is missing in the class data recovery software is common, accounting for about 25%. When the disk delete some data was deleted areas can cover just made a mark, the data has not really been deleted. But again, write it, not just remove the cover once the place, so you can use the disk scanning method to recover the data, but the data once they are covered by other data, it is difficult to achieve full recovery of data will be deleted. .


Common recovery software with EasyRecovery, Final Data, RecoverNT, etc., we use the Easy Recovery and Final Data. Due to the Easy Recovery and Final Data in partitioned tables when there is a set of unique treatment method, you can automatically use the slate to scan files, so you can often use a combination of surprises.


To restore files using EasyRecovery. .


Use Ontrack EasyRecovery company complex pattern recognition technology found in different places on your hard disk for file fragments, and on the basis of the statistical information on these file fragments to restructure. Then EasyRecovery in memory using a virtual file system and lists all of the files and directories. Even if the entire partitions are not visible or the hard disk only very few partition maintenance information, EasyRecovery can still retrieve files with high quality.


Can EasyRecovery retrieve data, files under the assumption that the hard drive also retains document information and data blocks. But, in deleting files, formatting the hard disk and other operations, then write a large number of the sub-region of new information, these need to restore the data it is very likely to be covered! At this time, are brought back in any case wanted data. Therefore, in order to enhance the repair rate data, stop on the hard disk to repair the partition or a new reading and writing. If you want to repair the partition boot partition precisely, we should immediately withdraw from the system, with another hard disk to start the system (that is master / slave hard disk structure). .


Simple operation trilogy.


Whether EasyRecovery or Final Data, its basic usage is very simple and can be divided into three steps: select the scan area, specify the scan type, and filter data. To EasyRecovery, for example, into the interface of the left after the first list, select "Data recovery" mode, then the software will provide more options for you select.。 (Figure 6, EasyRecovery "data recovery" working mode selection).


Figure 6. .


Select the "advanced options of the custom data recovery capabilities," then the system asks for scanning the partition. (Figure 7, EasyRecovery scan the specified partition).


Figure 7. .


And then let the user select EasyRecovery file system types. If you cannot determine the FAT32 or NTFS, you can directly select the RAW mode, except that this time the entire partition slice one scan, slow, scanning can take a relatively long period of time. The scan is finished, EasyRecovery lists the missing files list, and are placed in LOSTFILE directory, in a small box on the front of the tick bite, recover all the found files. You can also click with the left mouse button on the front of the "+ LOSTFILE, display list, and then select the file you want to recover Selection is complete, click "Next" and follow the prompts to select the file storage path. (Figure 8, EasyRecovery recover lost files). .


Figure 8.


PCW tool spectrum. .


Software name: EasyRecovery.


License: Free software. .


Software size: 12288 KB.


Download address: http://www. . Skycn. .com/soft/2070. . Html. .


RAID data rescue is a "mirror" on the line.


RAID Data Recovery many contacts as friends know of this service are not cheap, but if only some simple glitches, the first thing entirely to their own try. Many people have problems for the RAID felt strange to RAID5, for example, their safety should be high. But in addition to RAID controller itself may be damaged, the hard drive in the course of dropped calls and has not been timely manner is also a key factor. In addition, some so-called special RAID5 (such as RAID5 ADG, RAID5EE, etc.), in fact, did not support two hard drives as the theoretical dropped. .


Case study: 2005 September 4, a listed company logistics sector RAID disk array, the array suddenly crash counter led display hard drive. Because the entire RAID collapse, so the administrator is unable to enter the system, that is start. In a blank, or charge for professional data recovery company, and finally to the price of $ 3000-Pan (total 8 hard drives, 2. .4 million) for data recovery operations. RAID crash data disaster in the whole data recovery cases in occupies approximately 11%, while the proportion is not very high, but the charges are quite amazing. . .


Fault analysis: due to the particularities of the RAID, the partition table is not independent in a hard drive, and therefore requires the use of specialized software. However, in view of the server data are generally of great significance, it is recommended that you first use a Runtime DiskExplorer mirrored disk, the software is divided into FAT NTFS versions and versions. The process of making the mirror is very simple, even more than we normally use a Ghost software but also concise, to directly select the disk you want to the operation and specify the path to the image file can be saved, steps can be done in a graphical interface.


By disk mirroring, the source disk can be stored in a safe place, all data recovery operations dealing directly in the mirror plate. RAID data recovery software, there are many here also recommended the development by the Runtime's RAID Reconstructor (Figure 9, RAID Reconstructor main interface). To enter the main interface of the software needed to set the RAID type and disk number, then RAID Reconstructor will analyze the parameters and copy them scattered data. .


Figure 9.


In general, RAID Reconstructor can only deal with simple faults of small and medium RAID, but as sent before the data recovery center is worth a try recommended, but users must operate for the image file, or is likely to destroy data. As for professional data recovery company, Yi Ban 都有 own R & D software and a set of algorithms and Jinxingchongzu the tools to ensure high success rate and safety. .


Finally, we'd like to remind everyone that a RAID failure, don't let the Server service engineers, because the server was only responsible for the manufacturers of hardware devices, and most of the integrity of training does not involve data recovery. After-sales service engineers of many servers in the face of a RAID failure, simply use the forcibly loaded and initialized, it can cause irreparable damage to the second.


Little Knowledge: What is RAID5. .


RAID5 is actually made by RAID3 derived technologies. And RAID3 can be viewed as an extension of RAID0, it is also the data block is stored in the hard disk, however, in order to increase the security of your data, and in addition add RAID3 hard data parity information, access to data of parity, RAID3 work faster than RAID0 are slower, if you store data hard, so we only need to replace it, then you can use checksum the checksum information on a disk to recover the data, but if you check disk is damaged, lost. . The RAID RAID5 is for the existence of security risks, cross-data parity information is stored in each hard drive, so the cost to build much lower (at least only two hard drives), and do not worry about damage to the disk check brought data security issues (Figure 10, RAID5 checksum principle). .


Figure 10.


PCW tool spectrum. .


Software name: Runtime DiskExplorer.


For NTFS. .


Authorization: sharing the software.


Software Size: 1677 KB. .


Download address: http://www. .skycn. .com/soft/13370. .html.


PCW tool spectrum. .


Software name: Runtime DiskExplorer For FAT.


License: shareware. .


Software size: 1637 KB.


Download address: http://www. . Skycn. .com/soft/13369. . Html. .


PCW tools spectrum.


Software Name: RAID Reconstructor For FAT. .


Authorization: sharing the software.


Software Size: 1614 KB. .


Download address: http://www. .onlinedown. .net/soft/26914. .htm.


Opened to replace the hard disk head final nirvana. .


When troubleshooting a hard drive is because partition table or firmware fault, its internal failure is very worrying. Whether head defects or motor fault or more serious disc scratching, these need to be opened. The so-called open action, refers to a certain cleanliness requirements within the space of your hard disk to open the disc on their internal work, in order to retrieve the data. According to professional data recovery center engineers indicated that such a failure of the repair of great difficulty, data recovery services are normally around $ 2500, but also occupy the whole data recovery case in one of the biggest failures, approximately 46% of the share. . .


Case study: Hangzhou motor company has just returned from foreign purchase technical data saved in the General Manager of the desktop, but the desktop hard drive data eventually became "the killers". At the beginning of the hard drive slow, then suddenly cannot be recognized by BIOS, and powered with the exception of the "click" sound. Because of these technical information are one-time authorization, so the data is the value of one million lives hang.


Failure Analysis: In general, almost all heads of these fault conditions the aging treatment must be opened. .


Tidbits: opening of the prerequisite is a very high level of cleanliness of the room. Typically 100 clean room. Although thousands of grade level or even million of the most common console can also be opened successfully, but the failure rate is too high, it is easy to cause irreparable damage to the second.


Sealing are very hard and firm, but also very good as long as the use of hexagonal screwdriver handle. Unscrew the hex screws, respectively, after all, you can open the hard drive cover, now can clearly see its internal structure. Before opening the hard drive, engineers with experience in general will determine fault location. If you did not hear the hard drive when power is turn the sound board and after replacing ineffective, then it may be electrical failure. If the sound is normal and the rotation along with "a click" sound, then the shift is mostly caused by the designated head plate (at this time should be to minimize power-frequency), after the head need to be replaced to restore the data.。.


Opening operation is not as simple as assembling a computer, after all these components inside the drive is not completely general, so for opening operation O'clock need to find the right spare parts, should be requested at this time as Bujinjinshi models, and even Model No. Ye identical. When replacing the head, engineers built the first internal magnet film opened, then need to force properly, it will easily hurt the disc, resulting in a total loss of data (Figure 11, adjust the drive's head part). .


Figure 11.


The real difficulty lies in placing the head of the steps. If the internal hard disk and magnetic head composed of multiple discs, then left to engineers operating space is small, then little carelessness may touch the disc, or ruin the head. In addition, different types of hard drives in the head characteristics also different, which requires engineers with experience to adjust the distance. In the opening operation, the simplest is none other than head stuck, then gently flip if allowed to go places you can solve the problem. If the opening cleanliness is high enough, even the hard disk can continue to use, export the data will be easy.。 This step requires precise positioning of the mastering engineers, and did not touch on the disc, otherwise you will go by the wayside.


Fortune Institute of variable data recovery skills to shop. .


According to IDC's statistics, the current global annual data recovery market value of approximately $ 100 billion, also at least 1 billion RMB, but our data recovery professionals. When you are familiar with the earlier data recovery after the necessary skills, ever open an own data recovery shop. Will your skills into wealth?.


Working as entrepreneurs - which are suitable for the shop?. .


There is such a part, in the last century it into the computer industry, particularly those with many years of luck at the PC machine shop to engage in technical services, and you face every day so much reworking of the hard drive, in order to reduce costs and to reduce logistics, firms in each region has established a repair center, which some people will become a leading force in hardware repair center, and years of maintenance experience let these people have very strong data recovery capabilities.


In the year 2000, computer technology maintenance staff wages seem to have had some advantages, when computer hardware and high profits, a boom industry, coupled with relatively low prices at that time, so the wages of two or three thousand dollars has been pretty good, but to Now, competition has led to increasingly thin profit computer industry, and the current price to enhance the magnitude of relative wage will not improve much, but feel down a lot. .


So, as a technology is excellent computer maintenance personnel, if now only get 2000 Yuan wages, I felt a bit of a pity, if you go to Beijing, Shanghai and other major cities to work, although high wages, but also high in the face of pressure of work and life, so you can imagine, it is only sensible to start his own business. In computer accessories, the most profitable value is hard because the hard disk can be most easily damaged, in particular the user is the most important data, in the event of data loss will result in a great loss, but we can help them fix the hard disk or restore the data from which to collect a certain amount of money.


Choose the right business environment - where to shop for?. .


Determines the shop, it is first necessary to select the right shop locations, as it was and also, in General, the shop sites to computers in the vicinity of the town or city. First of all these sites together with the whole city all computer vendors, so every much buy computers, while every day there are also a lot of computer hard drive failure and to guarantee, in such a place to establish data recovery center, you can better let others know what you are doing, with the passage of time, there are those who need data recovery will take years. At the same time, the gate post data recovery services project, you can afford to do soft propaganda purposes. . .


Figuring out what the service items — earn money for you?.


Venues have been selected, the next to determine the services, from general direction, we selected two types of objects to make money, personal users and business users. Specific projects from the service point of view, consists of hard disk repair, hard disk data recovery, RAID recovery, U disk or memory card data recovery, CD data recovery, on the wrong format, wrong clone, partition error, accidentally deleted, virus damage after data and recover. .


For personal users, hard drives, Flash memory, MP3, and storage card storage device after the warranty, if a failure does not work, it means that you must take to repair (or direct purchase), if limited resources, to be able to fix this hard disk, users can still accept it. If the hard disk, Flash memory devices such as hard disks or move for various reasons, at the same time internal damage to the important data is lost, data recovery, hard drive repair than perhaps even more important, so that such user submitted data recovery programme for reasonable fees. For business users, the data of more importance.


Shop ready capital - shop do we need?. .


There is no doubt that all ready, you need to prepare for the funds to purchase the corresponding device. First is the rental shop, in General, Chengdu, Harbin, Nanchang such secondary capital cities, an approximately 20 square metres of computer supermarket shop price is 700 ~ 1000 Yuan/month (one year about 10000 Yuan). If you want to rent a larger shop-you can, but do not have the necessary at an early stage venture, and as long as the operating to quality, service, users won't care what your storefront is.


Then the equipment purchase, at least to prepare a Taiwan Diannao, in order to simultaneously fix IDE and SATA 硬盘 of Shuju be sure to purchase a computer with SATA interfaces, computer prices of about 5000 yuan is enough, and certainly for 方便, we propose prepared two computers. It also requires a major equipment - PC-3000 (Figure 12), I believe that hardware maintenance staff is no stranger to the device.。.


Figure 12. .


PC-3000 price is quite expensive, genuine products (including PC-3000 hardware cards, accessories, parts, and supporting software, etc.) to actually million, in accordance with the instructions that came with the product, installation and use are simple (Figure 13). In addition it is best to set up a Web site, via the network can also conduct business, this process can be compared to the us open in Taobao, an online store to make your own branding, and can be extended to more business.


Figure 13. .


It should be noted that, because of their own have the hard drive repair and data recovery technology, shop early (as in the first year) do not have to hire an employee, a person will be able to cope with business, if the business expanded slowly, consider hiring a relevant maintenance experience of technical staff, the general approach the city about $ 2000 to wage can hire. In this way they can spend more time doing business and put some simple maintenance work to employees. Of course, this is going to increase in a computer and office desks and chairs.


Services revenue budget - how to plan charges?. .


There is no doubt that the conduct of business before, we need to develop standards, while at the same time, to budget approximately earn, we want to give different item price, of course, this price should be reasonable, at least we want to develop reference currently before the hardware data recovery prices, then for comparison, and set a reasonable price. . How, is not very good small enterprise? For individual small companies, the fees can refer to the charges of the table below. .


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MHDD disk scan. .


Working environment in DOS. It should be noted that, should not be placed on the need to detect MHDD and repair hard drive, in addition, MHDD cannot open a write-protected floppy disks, hard disks and the CD correctly. Run MHDD, MHDD first to detect all the hard drives in the system and gives the connection diagram. We at any time you can press "shift + F3" key to rescan the disk connection status. Select the hard disk, you enter the main interface MHDD. The topmost row status line, mainly shows BUSY, WRFT AMNF, and TONF, etc. hard drive (or hard drive a sector) or the current status of the software. . MHDD further down the list of all available commands. I own research, to facilitate the distinction between us, especially the mhdd the realization that the bad sectors into three categories: a maintenance process of the green icon below; (also fixes a small green icon) 2 repair process of the green icon and red icons; 3 repairs in the process of traditional characters, W, and a small amount? No. scan command: for media scanning and repairing the disk surface. MHDD out from the reserved capacity in the sector of the same capacity to replace the newly found bad sectors and bad sector physical address of the write G-list table. Therefore, the total capacity of the hard disk will not be reduced. This repair method is based on the method of the underlying hardware.。 After running the scan command will report the current MHDD first hard drive model number, serial number, firmware version, supports data transfer mode parameter (to run the same is true for the other command), and then enter the scan status. In scanning the hard drive in the former, we must also set the scan configuration. The main options are scanning the addressing mode (LBA or CHS), the starting and ending cylinder and sector, timeout period, clear timeframes, and whether duplicate scanning/repair. In order to achieve the outcomes, it is recommended that you open the remap (bad block remapping), Loop the test/repair (duplicate scanning/repair) and Erase options such as WAITs After setup is complete press "F4" can start the disk scanner. Scan, the right side of the screen will display a variety of state of the disk surface, the number of statistics. "?" The gray above the surface of the disk block that the normal state, while the color blocks that here the potential instability in the disk, especially the red block, it is very easy to transform my physical bad sectors. And "?" State that here the following disk media is damaged or has bad sectors. These are just some bad sectors hard drives with less handling, fix the scope of this method: (Seagate, Fujitsu, IBM, Quantum, Maxtor, Western Digital, IBM laptop hard drive) like the rest of what Samsung not know, did not meet too. To study to be friends.。 . There is a change in hard drive capacity method, for instance, IBM's program will have a low grid can change the hard disk capacity, will be lower lattice friend should know.。 There are many more methods to wait for everyone. Aerase command: you can make the sector-by-zero, but the speed is very slow. Nhpa command: rhpa and can be displayed and all the real hard disk recovery. Aam command: you can switch the hard disk performance and noise, there are 127 level (0-126) for the designation, "126" represents the highest performance, but at this point the biggest hard drive noise. Note the aam command requires a hard drive supports Automatic Acoustic Management technology. The RPM command: RPM hard drives can be detected, but some of the hard drive does not support this command. . ibme and fujlst command: You can view the IBM and Fujitsu were the hard disk defect list. pwd, unlock and dispwd command: You can add unlocking to the hard drive, this drive is very peculiar way of adding a password, but do not forget the password (or solution if it can not forget you can lock the hard disk drive HDLOCK the lock again once, then it comes with UNLOCK and DISPWD decryption, dead horse a living horse Medicine Bai). .


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Pcsos PC rescue centre-> com provides upiea_1. .32d (IE plug-in shield) is extremely recommended that com shielded 3721 and most powerful weapons, you can repair the damage by virus common IE's file associations and related settings, and so on, must-have Internet access. . pcsos Computer Rescue Centre -> com provide Kingsoft Trojan specifically kill 2005 Build 050412 "Kingsoft Trojan specifically kill 2005" Green Edition version comes with Trojan Library 2005. .04. .05. .00. . Pcsos Computer Rescue Centre -> com provides Kingsoft Internet Security Kingsoft's IE repair tool repair tool for IE, IE has been maliciously changed can try this. pcsos Computer Rescue Centre -> com provides testing procedures Kingsoft Duba vulnerabilities company produced a system vulnerability scanner.., Version .25 .7.4388, scan engine version 4320, killing 98919 viruses, Trojans and varieties, in addition to the basic antivirus capability can also be killing the MIME, UUE, XXE, BinHex compression package, NTFS streams, Office macro, a network drive. . Download offline updates to the directory extracted to complete the Health Level pcsos Computer Rescue Centre -> com device to provide a shield shielding web page pop-up advertisements gadgets. pcsos Computer Rescue Centre -> com provide RegClear. . Rar is a user-friendly registry repair tool, if the registry has been maliciously modified, you can try this. pcsos Computer Rescue Centre -> com offers Kaspersky Anti-Virus Personal (Kaspersky) v5. .. .0 .0 .0.. (1) to file and folder encryption software, convenient green compact and practical. The user simply in a file or folder, right click, select [topspeed shadowing], you can quickly add files or folders hide/restore, operation is very simple, and you have a fix, not afraid, not afraid of accidentally deleted illegal copies! important is support for mobile devices such as mobile hard disk or USB drive, the files in the other computer is also properly restore! operation ease, simple for most users to fully meet the need for encryption. . pcsos Computer Rescue Centre -> com provides specialized Kabbah Norton uninstall tool and coffee is said to Kabbah, Norton, coffee special uninstall tool. Never tried, need to try. pcsos Computer Rescue Centre -> com offers Kaspersky 4. .5 Version of the green, then: 1, green version, no installation antivirus! You can also update virus database online! More importantly, do not take up system resources! 2, you can also install other anti-virus software, with Kabbah driver 4. .5 Green version as a supplementary anti-virus tools! pcsos Computer Rescue Centre -> com offers Trojan detector 3. .. .Yami) rising virus CIH, and being "new" computer infected with CIH, motherboard and hard drive data will be destroyed, leaving the PC does not boot, data loss on your hard disk. The difference is that the "new CIH" in Windows2000/XP operating system (Win 9X CIH can only run under System), thus undermining the CIH in scope than the old one. According to the rising anti-virus expert analysis, CIH, "and" new old CIH virus are spread through infected files using some spam attack data overwrite the system's hard disk, causing loss of user data, and more difficult to restore. . Rising Anti-virus experts further pointed out that when the CIH virus can only run under Windows 9X systems, with the Windows operating system, the continuous development, Win2000/XP become mainstream, so CIH lost viability. If the CIH can run in Windows 2000/XP below, then it may cause significant annual losses. And this "new CIH" virus, there may be this dangerous reality. pcsos Computer Rescue Centre -> com provide CopyLock forced removal tool, face the situation can not be deleted, try this.。 Pcsos PC rescue centre-> com provides IE repair tool 2. .6 main features: * delete a malicious Web site Home is modified, browser, desktop, folders, and other settings are modified. * Fix the ie toolbar, right-click menu, tool bar. * Delete the registry key value is common trojans. * Check the startup item is not a common virus infection (including ini configuration files, etc). * Delete webpage history, Chinese Web sites need to be rebuilt. * Clears the mediaplayer and realone history. . * Fix open the browser to display illegal operation errors such as can not open a new window. pcsos Computer Rescue Centre -> com offers Ad aware SE professional 1. .06 R1 streamline the green version of Ad-aware system is a compact and easy to use security tools. It scans your memory, registry, hard drives and external storage, and quickly find documents and related advertising tracking components, and then choose according to your security to remove them. With it, you can easily clean your system, so you can surf the web while a high level of protection of their privacy.。 I personally believe that it is a protective wall and the best antivirus software. Ad-aware SE Personal Edition (standard personal version) function has been greatly improved. Extended memory scan now can scan a process to load all modules; the new version incorporates the latest CSI (code sequence identification) technology to identify known target new variants; extended registry scan can now scan the user's registry branch; scan speed improvement, etc. Pcsos PC rescue centre-> com provides Eraser5. . Can completely remove any traces of previously deleted files. Software with system integration, scheduled tasks and other functions to support the system shell, supported drag and drop files to user-friendly. The program supports the highest erase Gutmann algorithm 35 times, and also built the line with the U.S. Department of Defense U. . S. . DOD 5220. .22-M standard U. . S. . DOD 5220. .22-M (C and E) Erase algorithm, which can completely prevent the software and hardware recovery tools recovery.。 In addition software allows the user to your own custom erase algorithm. Pcsos PC rescue centre-> com provides attacked monitor 1 TCP. . pcsos Computer Rescue Centre -> com provides Rising system security vulnerability scanning vulnerability scanning system in 2005, can choose to download the security update / patch upgrade, update some security patches for small holes, when there is no automatic / manual repair. pcsos Computer Rescue Centre -> com pandemic virus by providing trend kill 3. .9. .1020 The tool used to replace the currently popular method of repair tools, those tools can only remove a few specific viruses. The TSC can deal with all known malicious code infection.。 Pcsos PC rescue centre-> com provides graphic image v2. ACDSEE .43 simplified Chinese classical Edition high performance card program that supports BMP, GIF, JPG, TGA, TIF, and other common graphics file formats, the picture to open a extremely fast. You can also use it to view an animated gif. It can also provide you a directory create a photo album. This version of the version number is 2. still, but in fact the main .43 size and a few years ago, the publication is not the same, it is believed that the company corrected Bug ACDSee back to general users. . .0 Version, but for many who just want a simple concept map is concerned, this version is sufficient to meet demand and to save computer resources and waste, no wonder ACDSee companies still offer this program for people to download the update and can see that they are indeed attractions. pcsos Computer Rescue Centre -> com provide AlgoLab_PhotoVector_v1. .2 It is a tool for bitmap transfer vector, the treated image can be saved as a variety of formats.。 Pcsos PC rescue centre-> com provides Alien. .Skin. .Eye. .Candy. .4000_4. .2 this needless describes it, PS filter, RP, chrome, shiny, glow, shadow, HSB noise, water, trace, excavation of shear, glass, bevel, smoke, whirlpool, hair, wood grain, weaving, stars, strabismus, marble, shake, movement marks, melted, flame of 36 special effects filters. Pcsos PC rescue centre-> com provides AVI2GIF is avi format converted to GIF format gadgets. . .6 Simplified Chinese green version fully graphical operation, use easily get started. Is a new image editing software, offers a variety of modification adjustment function of painting, you can very easily modify the image. It has the natural tools and art printing, image retouching and efficiency tools. Focus on a wide range of image adjustment and retouching functions and effects. A very nice drawing, photo repair software. Contains a lot of special effects filters, special brush.。 Code: 9 # 02108122YHMTTSBNM0INF1VRIHKZRQQCCJTORP4 right-click "icon you can choose to replace the source" pcsos PC rescue centre-> com provides screenshots Mage 2. .1 as long as you can see pictures/icons can crawl, including Windows Media Player to play .avi *. dynamic image. Pictures/icons can be .jpg; *. *. * .jpeg;. * .bmp;; * .ico. .wmf .emf; *. format. . .


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Add a comment to use diskMAN testing repair instructions.


DISKMAN the characteristics of its easy operation for the rookie-level computer users like, but in the last two years, DISKMAN version stuck in V1. .2, Introduced an upgraded version of the total not see, can not help but make people worry about it. Now, 2. .0 Version of DISKMAN finally emerged, still is free software, but Mingzi into the Disk Genius.。 Although Disk Genius more powerful, but it is still the "slim", only the district 143KB. . 9, to hide FAT/FAT32 and NTFS partitions. 10 logical partitions can be backed up, including table and the partition boot record, including all of the hard disk partition information. 11, to provide scanning the hard disk bad area functions, reporting damage to the cylinder. 12, with sector copy function. 13, can completely clear the partition data. Second, Disk Genius, if you just want to run the interface using Disk Genius view, backup hard drive partition information, you can directly run the software under WINDOWS 9x.。 Run the ".exe" DiskGen. starting the software will automatically read the hard drive's partition information, and on the screen to display the chart of a hard disk partition. Figure 1 is a Disk drive Genius detection author get zoning information map. The histogram is displayed to the left of each partition on a hard disk location and size of the bottom-most partition of the first partition. . Tabular form on the right screen shows the type of district and their specific parameters, including partition boot flag, system flag, partition starting and ending cylinder number, sector number, head number. If you do not understand the significance of these parameters, you can see the help file "on the partition table" content. Between the form and parameters of the histogram, there is a dynamic connection indicates the correspondence between them. You can mouse click on the bar chart or table to select a partition, you can also use the keyboard cursor keys to select the current partition. Use "TAB" or "SHIFT-TAB" key to choose between the histogram and tables.。 Special tip: the partition table of the parameter 0 ~ 3 entries which correspond to the hard drive master partition table of the four tables and paragraphs 4, 5, 6 ... item which correspond to logical disk D, E, F .... If the hard disk has only one primary partition and Extended DOS partition (using FDISK to partition your hard disk usually is the case), "generation 0 item" represents the primary partitions (logical disk C) partition information, "1" indicates that the information in the extended partition, and "section 2, paragraph 3," all zeros, it does not correspond to any partition, it cannot be selected. . Partition parameters to truly understand the significance of the table, you must understand the structure of the hard disk partition bracelet recommended to interested friends and find some relevant information to see. Third, use 1. . Backup and restore the partition table: Start the software, press F9 key, or select "Tools" menu under "Backup partition table", and in the pop-up dialog box, enter the file name (by default stored in the A disk), or can backup the current partition table.。 2. Create partition: the partition is not set up hard disk space (i.e., free-space) in the partition map is grayed out, only in the hard drive's free space to create a new partition. To create a primary partition (Primary), first select the partition structure in the grey area, press the Enter key; then follow the prompts to enter partition size, select the partition type (it is necessary to establish a non-DOS partition, you must set the system flag when you are prompted to do so, such as the establishment of Linux partition, the system is flagged as "83"). Use of this software, you can create up to four primary DOS partition. Filed before the user has not set the boot partition, you automatically activate the first primary partition. . Extended partition created, but also be further divided into multiple logical partitions (logical drive) to use is: select the newly created extended partition (green area), press ENTER key, then the operation and establishment of primary the same partition. Tip: When the hard disk has an extended partition, extended partition can no longer build up. If you want to be an extended partition with adjacent free space and then divided into extended partition (which is to extend "extended partition" of the range), can only be extended to first delete the existing partition and then rebuild Caixing. 3. .。 A partition is selected, press the F4 key to hide the partition, once again press the F4 key recovery; press the delete key or F6 to delete the selected partition. Tip: remove primary partitions, the space is converted to free space (shaded area); such as delete a logical partitions (such as D, E, ...), in their own space and do not become free space, but rather into the extended partition is not used (to green zone 4. adjust the partition size for this software can not damage any data directly resize FAT16 or FAT32 partition size. . Proposed to adjust the system before running WINDOWS "ScanDisk" Check disk errors and correct, and make a backup of important files. Force in the adjustment process can not be interrupted or shut down (restart). Otherwise, the data were adjusted partition will be lost. However, I found, Disk Genius zoning adjustment action is really just the termination of the partition number of cylinders, heads, number of sectors to the extent possible (ie no data area) to adjust, and can not really move from partition start position. Therefore, it seems useful this feature is not big. 5. .。 Modify selected after the "OK" to exit. Tip: use this method to resize the partition's starting and ending cylinder, head, sector, so as to adjust the partition size, but may cause logical disk (data) loss, not familiar with the partition parameter that the user wants to use this feature. 6. Rebuild partition table: when the hard disk partition table is free of viruses or other causes corrupt Disk Genius through damaged partition boot record information (mainly searching partition table end flag 55AA) rebuild partition table. The search process can use the "automatic" or "interactive" in two ways. . Interactively on the discovery tips for each partition is given by the user to choose whether to keep. When the automatic renewal of the partition table is incorrect, you can use interactively re-search. Reconstruction process, the search to the area will be promptly displayed on the screen. But does not immediately save the file, so you can repeatedly search until the correct set up after partition table Save. This feature of the operation is very simple, just select the implementation of the "Tools" menu under "reconstruction area" command can. This function is to repair logical drive failure lost the most convenient way, especially the "treatment" due to improper use of Pqmagic various hard disk failure "cure for.". Override the master boot record (MBR): when the hard disk's master boot record (located on the hard disk head cylinder 0 0 1 slice) damaged, will not be able to boot the system, you can use this function to override the master boot record. Genius automatically checks the Disk and rewrite corrupted master boot record. There is no master boot record (MBR) of a new hard disk, Disk MBR will automatically establish a Genius. This feature is located in the "Tools" menu. 8. Parameter check: this software after the read the partition table and update the hard disk partition table before automatically checks the partition parameter is found to be reasonable parameters prompt them one by one. . 9. . Update partition table: After you have completed the establishment of district or regional parameter modification is done, the new settings to take effect when, according to F8, the software will first check the partition parameter, correct the hard disk after the write to update the partition table. 10. . See any sector: by CTRL_R key, in the view pop-up window (Figure 3), designated to see the sectors (available TAB key to select the cylinder, head, sector parameters), "PageUp", "PageDown" keys before and after the flip.。 If your computer is equipped with a second hard disk, a hard disk "menu" will appear under the "2nd hard disk" option. Select it to switch to a second hard drive. Use the same action can also be converted to the first hard disk or other drive. 12. Traceback function: in order to prevent errors, users on the partition table for easy operation (including setting up, delete, hide, activate, modify the parameters, etc.) to Disk immediately Genius does not save the changes in memory, waiting for you all to modify, correct and order confirmation to save command, it will change once written to the hard disk. . . DAT, kept running in this sector all the updated original content. Click on the "hard" menu under "back", you can change the hard disk sectors contents to be restored to the state before the write. With the back function, no doubt a dangerous area for the operation also provided an insurance. 13. . Quick format a partition: Create a primary partition and logical partition, you also need to be formatted to use. Now Disk Genius also has formatted FAT16 or FAT32 partitions of the function. This feature is in the "partition" menu.。 The formatting process, asks you whether or not to proceed with a hard disk surface scan, depending on your hard drive, if you are sure that there is no bad sectors, no scanning. 14. clear the sector data: this function with a null byte to fill the hard disk sectors, can make these sectors in the file completely disappear. But would like to remind you that, before doing so, be sure to carefully consider the use of this feature!, please select the sector of the partition (never wrong!), and then in the "Tools" menu, select "purge data sectors." 15. . This feature is not by "clusters" test, not the bad sector marking out. So you can test any type of partition. You can select by "cylindrical", "track" or "sector" test. In terms of "cylinders" test, when found the bad cylinder, it will skip the bad cylinder, to test the next cylinder, so the speed faster. If by "Track" test, will skip the bad tracks found, so at a slower pace. In terms of "sectors" test, as found when a bad track, bad track will be within the testing of each sector, so the slowest. Testing is completed, will result in a bad sector list, save to the "BADSECT.. TXT" in. 16. .。 Example: using a FAT32 partition boot record backup restore corrupted boot record. This feature is located in the "Tools" menu. At run time, follow the prompts to enter the source sector, the aim of the sector starting position and you want to copy a number of sectors. Experience: the Disk is really a Genius for tailored to very good use of a hard disk partition tool, on the partition table to create, delete, hide, activate, modify the parameters, and so on, the effect can be seen in the figure from the interface, but is not actually take effect, you confirm that the correct and order filed command, it will change once written to the hard disk. . When your hard drive partition problems, may wish to use Disk Genius to "Health Check", even if you are a rookie, you can fearlessly on the partition table "surgery." Strongly recommend that you download a trial. Disk Genius will install the system on an emergency boot disk and use it to your hard disk partition table information is also backed up to the boot disk to prepare for emergencies. If you want to modify the partition information when the boot from the floppy Disk Genius, this back file LOOKBACK. . DAT will also be saved to a floppy disk, you keep a pair of "regrets." .


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Common detection software to add comments.


Hardware Tools Software of the software are summarized my own experience, and there may be some place is not complete, I hope you add users to a detailed description of each software will no longer write, but to introduce a simple functional purpose of the article is to make more users to know a little more knowledge of the hardware detection for hardware enthusiasts have more tools to understand the following sub-posts detection test is given a key word. ..: Main software .CPU article cpu-z, CrystalCPUID, Superpi, etc. cpu-z most common processor identification tool, moreover also can display some information about the memory CrystalCPUID basic functions and is similar to the above, but this feature more but cpu overclocked cpu Superpi famous memory test software, the most commonly used is a bit of calculation 1M [this was hanyu007 in 2005-06-15 14: 59 re-edit] III. . . A lot of motherboard BIOS settings are PCI Latency Timer (PCI signal delay timer) this option, when our sound problems, sometimes you can adjust the PCI Latency to solve the problem.。 Mentioned above [VIA the via chipset PCI latency timers device latency tuning tool] only supported VIA the via chipsets and Win9x systems, and the recent emergence of the PCI Latency Tool 2. .0 tools can be run on most Windows platforms, and you can adjust the network cards, IDE controller, sound card, Modem, display controllers such as PCI latency values. PCI Latency Tool tools setting is very simple and right to select the device you wish to adjust a menu will pop up. . Remove Setting (s) - is clear from the definition set. QuickSet Latency-do not need to save in the Setting Options - Application of the direct effect can be produced. According to some foreign forum users test reflected in the adjustment display controller PCI latency value from 248 to 64 after running hard for some of the original game such as HL2, FARCRY have brought some performance improvements, the game became more fluent.。 【 D.. . RAM Idle Professional RAM Idle through the release of more memory to improve system performance. When the remaining RAM to minimum, the program automatically release and order RAM 5. .. .RivaTuner is a powerful overclocking debugging software. It is the main function of the project by modifying the registry, in most cases, these changes will not be able to improve graphics performance, but they can improve image quality and solve some compatibility problems, you can change some of the video card., soft. ATuner relative functions is not so strong, but the file is smaller, the interface is simple, the most famous video 3Dmark testing tool, named the company before 01 madonion, futuremark 03 later changed its name to the most commonly used is 01 and 03 version, the former is based on DX8. .1, DX9. . .0 C (to 128M memory or more, however requests, demands higher) Many players regard the 3Dmark results to measure graphics performance as one of the most important criteria for AquaMark is also a growing emphasis by the players of a card test software, One AquaMark3 the greatest impact has been among the almost equal status with the 3Dmark is an essential tool for many players of other testing tools are FarCry Benchmark, Half-Life 2 Benchmark, etc. 6. ..: Main audio article RightMark Audio Analyzer software, RightMark 3DSound RightMark Audio Analyzer and more commonly available on the sound card or any connection to the computer's audio interface for evaluating software test sound card RightMark 3DSound on various 3D audio API support tool for audio test software is recommended to use a separate sound card users, advanced audio player 9. . . Other software cpu related CPUCool, SpeedFan, so hardware-related TaskInfo, CPUFSB so card-Radeon BIOS Tuner, NVFlash brush card bios, etc. are the tools, the former support A card, which support the N card input related WireKeys ( Keyboard enhancement tools), ClickyMouse (mouse enhancement tools), Keyboard Spectator (keyboard monitoring tool). .


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Add comments to a hard disk problem solving.


Each user's hard drive are stored a great deal of useful data, while the hard drive is an easy to break down the components. In order to effectively save the hard drive data, in addition to saving hard drive effective data backup outside of work, but also learn how to save hard drive failure hard drive, or to extract the useful data to minimize extent the loss. 1, the system does not recognize the hard disk of such failures are more common, from the hard disk can not boot from A drive can not boot into the C drive, use the CMOS of the automatic monitoring function can not find the existence of the hard disk.。 If the new connected hard disk not recognized, there is a common reason is that the hard disk of the principal lines, if the hard drive is connected to the IDE's main disk location, then the hard disk you must jump as discoid, jumper errors generally cannot detect the hard drive. CMOS 2, result in the failure CMOS activities directly affect the normal use of the hard disk, here is one of the main means of hard-disk type. The good news is that now the machines support the IDE auto detect "feature to automatically detect the type of hard drive. When you connect a new hard drive or replace a new hard drive after using this function to set type. Of course, there are types of boards can automatically identify the drive type. . Such as CMOS type of hard disk drives smaller than the actual capacity of the drive behind the sector will not be able to read and write, if it is multi-division state the individual partitions will be lost. There is also a major cause of the malfunction, the current logical arguments support the type of IDE hard disk can use Normal, LBA, Large and so on. If in general the mode to install the data, but in CMOS, to other modes, will be a hard drive's read-write false failures and Yin Wei Qi Wu Li geology Ying She has changed, will not be able Duquyuanlai the Zhengque hard Wei Zhi .。 This paragraph is damaged will not be able to boot from the hard disk, but the light from the soft area or district can read and write to the hard drive. Fix the fault method can make it easier to find, use the version of DOS fdisk most convenient, when run with parameter/mbr, direct replacement (override) the hard disk's master boot program. Actually the hard drive's master boot sector is the establishment of this program, fdisk. Exe which contains a complete hard disk partition. Although the DOS version is constantly updated, but the hard drive's master boot program has not changed, 3 from DOS. . In addition, other tools such as kv300 software also has this feature. 4, partition table boot error boot failure hard disk partition table errors are serious errors, different errors might lead to different losses. If there is no active partition flag, then the computer will not start. However, soft areas or light areas on the hard disk after boot system read and write, reset the active partition by fdisk to repair. If a partition type of error, can cause the loss of a partition. The fourth partition table for the partition type byte value, the normal bootable DOS partition larger than 32mb of the basic value of 06, while the extended DOS partition value is 05.。 If you change the 06 DOS does not recognize the type such as DOS, efh believes change partition is not a DOS partition, of course, cannot read or write. Many people use this type value for a single partition encryption technology, to restore the original values of the correct type to make the partition back to normal. The partition table has additional data is used to record the start or end of the partition. These data will result in the confusion or loss of, generally cannot be manually restored, the only way is to use a backup of the partition table data writeback, or from another of the same type and the same partition on your hard disk for the partition table data to other data is permanently lost. . Of course, can be used for debug to *, but * for red tape and has certain risks. 5, mark the error caused by the effective partition the hard disk master boot sector on the hard disk failure, there are still an important part, that is, the last two bytes: 55aah, this word for the sector of the effective symbol. When from the hard disk, floppy disk or optical zone starts, will detect two bytes, if you think hard there, otherwise it would not recognize the hard drive. This flag will be transferred from the hard disk boot rom basic or tip into the floppy disk. Can not be transferred from a floppy boot disk. Here for the whole hard drive encryption technology.。 In addition, the DOS boot sector still has this flag is present, when a DOS boot sector without boot flag, the system startup is displayed as: "missing operating system". The repair method can be used in the master boot sector repair methods, only addresses, a more convenient way is to use the following DOS system generic fix. 6, DOS boot system boot failure DOS boot system is primarily used by DOS boot sector, and the DOS system files. System files including iosys, .sys, msdos.. .com, which command command. . DOS in Windows 95 systems carry, msdos. . Sys is a text file, the file is to start windows. But do not just start the DOS when the file. But the DOS boot error, it can boot from a floppy disk or CD-ROM, then use the sys c: transmission system fault can be repaired, including the boot sector and system files can be automatically repaired to normal. 7, FAT table to read and write failures caused by fat table records the address of the hard disk data storage, each file has a connection to specify its stored fat chain cluster address. fat contents of the file table means the loss of damage.。 But because of the different specifications of the disk, the length of their fat table and the second fat table of addresses is not fixed, so fix it when it is necessary to correctly find the correct location, some tools software such as nu, itself has such repair feature, is also very convenient to use. Debug can also be used to achieve this for the * its m command the second fat table moves to the first table. If the second fat table is corrupted, you cannot recover the hard disk to its original state, but the file still resides in the data in the data area of the hard disk, you can use chkdsk or scandisk command rehabilitation, the resulting *. . If it is a text file can be extracted from the full document can be merged, if it is binary data file, it is difficult to restore a complete file. 8, table of contents damage caused by lead failure catalog table records the name of the file on your hard disk and other data, the most important of which is the starting cluster number of the file, directory table because there is no automatic backup feature, so if directory damage to loss of a large number of documents.。 9, mistakenly deleted partition data recovery when using fdisk delete hard drive partitions, the surface is hard disk's data has been completely disappear, when access to the hard disk is not formatted displays invalid drive. If you know fdisk works, know that fdisk just rewritten the hard disk's master boot sector (0-0 Road 1 slice). Specifically deleted hard disk partition table information, and any of the hard disk partition data is not changed, you can copy the above partition table error fix, try to restore the partition table data restores the original partition i.e. data, but this is limited to subject to partition or partition after reconstruction. . 10, mistakenly formatted hard drive data recovery in the high version of the DOS state, formatted * for format by default are set up for the restoration of formatted disk information, is actually the disk of the DOS boot sector, fat partition table and copy all the contents of the table of contents to disk, the last few sectors (the rarely used because of the back of the sector), the contents of the data area has not changed. This by running the "unformat c:" you can restore the original file allocation table and the table of contents to the hard disk information to complete the restoration.。 . This can have serious bad sectors to ensure the normal use of the hard disk and remove the system frequently to read and write bad sectors to expand the area of bad sectors. But it needs to know the software and the calculation of hard experience, many people are not easy to be accurate. Method 2: Using FDISK and FORMAT command to format a specific method is that, first of all to figure out the hard drive capacity, for the first disk in question into a C drive with FDISK, then FORMAT to format, when it comes to not repair of bad blocks faced FORMAT always try to repair, then record the percentage of under. .。 This little tray not formatted after completion of the work in total, this will be bad blocks to all jump in the past. It might lose some good road, high-capacity hard drives is insignificant, and the hard disk uses up more stable. Method 3: use specialized bad disc partition tools such as FBDISK FBDISK this is a DOS specifically find bad road and isolate software after partition, only one file, just dozens of K. Operation is very simple, first make a boot to DOS floppy disk in the floppy disk FBDISK, use it to boot the system, that system can only be linked to a hard drive that you want to repair, and add a line in the main hard drive. . This software is good, but may be relatively large hands, I had once used it to a 10G hard drive Saowan, the report said only 300M available, but after I used the second method, it's good to find a space close to 2G. So we still demand to use. There is a special category of bad sectors face looks horrible, in fact, was good repair, such as the system shows "TRACK 0 BAD, DISKUNUSABLE", meaning "damage on track, the hard disk can not use" or use ScanDisk to scan other hard disk The 0 sector there is a red "B".。 In fact, reasonable use some disk software, end-of-0 and sector shield off, and 1 slice instead will bring the effect, such software as Pctools9. .0 and NU8, etc. In the case of Pctools9. .0. A hard drive failure occurs above 40G, start with a spare computer, running Pctools9. DE .0 directory. .exe file. . Open the Select menu will appear PartitionTable, selected after entering the hard disk partition table information. The drive has two partitions, locate the C zone, the partition is started from the hard disk 0 cylinder, then, would be a partition of 0 into 1 BeginningCylinder can, and save and exit. Restart the computer and press the Del key to enter COMS setting, run "IDEAUTODETECT", you can see CYLS from the 782 into 781. Save exit and re format the hard drive partition on it. .


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DM instructions. .


DM instructions for use.


1, on "10000 plates." .


DM is ONTRACK company a old hard drive management tools, in the actual use is mainly used for hard disk initialization, such as low-level formatting, partitioning, advanced formatting and system installation, etc. Due to the powerful, installation was extremely fast. But because of various brands of the hard drive has its special internal formats, for different hard drive development of DM software and cannot be generic, the use of this to the user brought inconvenience. DM universal Edition completely lifted this restriction, it enables IBM's DM software for any manufacturer's hard disk, which is the favorite of the software, the user is a pleasure.


DM-purpose version consists of two parts, Part of the original IBM-DM software, the other one is specific to a partner in the software development process (DM Partner) DM. . COM. In other words, DM million partnership with the version of the program is actually with the DM, also known as DM & P (Disk Manager & Partner), if you have IBM-DM software (must be 9. .43 Version), only the partner program DM. . COM copyed on the line. .


Second, the main function.


1, providing easy installation and advanced two models to meet various requirements of different users. Simple model for its primary users, advanced mode is designed primarily for advanced users. .


2. fully supports the FAT32 file system, you can format a partition larger than 2 GB of the drive, when you use the Advanced installation mode, allows you to change the size of the hard disk clusters.


3, a breakthrough 8. .4 GB limit, the installation of more than 8. .4 GB of IDE / ATA drive, not only can use multiple FAT12/16 partition, you can use a single bootable FAT32 file system partition. .


4. provide hard drive diagnosis feature allows you to find the hard disk subsystem interrelated issues.


5, compatible with multiple operating systems, including DOS, OS / 2, Windows 3. .x/95/98 and Windows NT. .


6. support IDE power management.


7, on the IDE / ATA drives to read and write multi-sector support to accelerate the data transfer. .


Quick Format 8, IDE/ATA/SCSI drives. The vast majority of cases, completely installed drive does not exceed 1 minute.


9, support the Enhanced IDE / Fast ATA high-speed data transfer. .


10, provides a low-level format programs than many Low Level BIOS attached Format is much more advanced, and even have some 0 tracks of hard disk comes back to life.


Third, install and run. .


1. install.


The user can http://www. . Newhua. . Com. . Cn download the software free download pack by IBM-DM. . EXE, DM. . COM are two procedures used first decompress IBM-DM. . EXE (only in Windows 9x you can execute the file by double-clicking), insert the floppy disk when prompted to insert the required, completed, then DM. . COM copyed floppy disk to complete the installation. .


2. run.


Although DM can be hard to run, but the actual use, due mainly to the hard disk initialization, it is more common to the floppy run. Furthermore, it should prepare a boot disk, or to simply install the disk as a bootable disk DM. .


The software provides simple and advanced two modes of operation.


If you want to start by simple mode, enter: DM (carriage return). .


If you would like to start by the Advanced mode, enter: DM/M (carriage return).


If you want to get the software to other command-line switch, type DM /? (Carriage return). .


The description of the switch as follows:.


/ B BIOS information display system, if the show has problems. .


/C on color display forced use of monochrome display.


/ D = X drive limit the search to (X = 1-16). .


/F against quick format.


/ G ban open graphics display modes. .


/H calls the online help.


/ L = X loaded dynamically driven coverage options (X = 0-2). .


/M manual operation mode (only for advanced users!).


/ N using the BIOS a standard format (non-DOS-compatible format). .


/O ignores all the extended BIOS INT13H calls. hard disk


/ P-ban Fast ATA hardware detection. .


/S prohibit the second controller support.


/ T, / T-INT 13H extensions support. .


/V = X dynamic drive overlay logo options (detail) (X = 0-2).


/ U forced to use the ATA / IDE transfer mode can be used. .


/X do not mount XBIOS.


/ Y, / Y-request / no dynamic drive configuration. .


3. pay attention.


Re-partitioning and formatting the hard drive will erase all data! Low-level format the hard disk will be elected into the injury, not a last resort, do not do low-level format the hard drive. If necessary, back up important data, so as to avoid unnecessary losses. .


IV. Summary mode (Auto mode).


First computer with a boot disk, after the completion of the implementation: DM (carriage return). .


Press twice to enter the main menu, go to the software, as shown in Figure 1: 〖 〗 injection: figure slightly.


A total of six main menu options, when the band of light to move to an option, the right will display the corresponding quick note, the user easy to use. .


1. Easy Installation Disk (simple disk installation).


Easy to use disk to install, DM will automatically install all the capacity of a hard disk partition. And can not be manually changed. The entire operation process is very simple, just answer a few questions you can suggest. .


Selected Easy Installation Disk, press ENTER, the DM will automatically find the hard drive is already installed, and displays a list of hard drives, if correct, select Yes, otherwise, select No. Here, choose Yes, the Enter key, the dialog box appears to prompt you whether to use the FAT32 file system (Note: this dialog box only supports FAT32 partition boot disk can appear when you start your computer, if using the DOS 6. .x disk boot system, does not appear on this tip: If the hard drive capacity of more than 8. . . X, will be prompted to install support files Ontrackd. . Sys, you must select Yes, in order to access all of the hard drive capacity. In the following advanced installation are the same, not repeat). The next dialog box that appears prompts you to DM has been detected in the current hard disk to a partition, if it continues, then, hard drive data will be lost, press Alt + C to continue, other key to cancel.., And would like to install .1x Ontrack's enhanced 32-bit access drivers, DOS and Windows 3. .1x after the installation is complete, run DM again, choose from the Maintenance Option option Windows 3. .1x Driver Options option, and then do one of the Drivers to Install. Press any key to continue, the Disk Manager Status dialog box appears, indicating that the hard disk installation completed successfully, remove the disk, press Reset or Ctrl + Alt + Del to restart, follow the prompts. . .


Installation Disk 2, Advanced (advanced hard drive installation).


Advanced installation here, does not mean that the following will be referred to the advanced mode. In the advanced installation, users can define their own hard disk partition size, more flexible than the simple installation. .


In the main menu, select Advanced Disk Installaion, press ENTER, select the hard disk, and then select Yes, then the dialog box prompts you whether to use the FAT32 file system dialog box, when selected, and then press the Enter key twice to appear as in Figure 2 〖 〗 figure slightly: the dialog box shown:.


The dialog box offers three kinds of partitioning options, including, Option (A) and Option (B) yes DM Genjudangqian Yingpan scheduled defined size of the partition Ruyaoziji defined area the size of the Xuan Option (C). Here, select Option (C), the band of light known to the Option (C) Define your own option, press the Enter key, the resulting dialog box shows the current maximum partition the hard disk capacity, you can change, by returning a value for each input car keys. After completion of figure 3 〖Note: The dialog box shown slightly〗:. .


In this dialog box you can see the partition type, the number of cylinders, heads, sectors, etc. You can also remove, re-create, or change the size of the partition. For example, you want to delete the extended partition, the band moved to the zone, press Del key when prompted, press Alt + d to delete. . .


Upgrade Disk Manager (DM).


Ontrack DM and automatically update all the drivers for the company's support. Good selection, press the Enter key, the dialog box that appears selected Yes to start the update, complete, exit the DM to update the entry into force. .


4. Maintenance Options (maintenance options).


Selected, press the Enter key, there Maintenance Menu (Maintenance menu), the maintenance menu, a total of nine options, the options as follows:. .


Create Boot Diskette created Ontrack Ontrack boot disk, disk boot failure, use the boot disk to start the computer to recognize the large hard drive, there are two options: Make this diskette Boot Diskette an Ontrack (replication DDO files to the floppy disk, the disk must be bootable disk) and Copy this diskette (if the original is Ontrack boot disk, you can use this option to direct copy).


Dynamic Drive Dynamic Drive Overlay Options coverage options, the driver of this dynamic can identify a large hard drive old machines, hereinafter referred to as DDO, a total of two options: Update Dynamic Drive Overlay (updated DDO) and the Remote Dynamic Drive Overlay (from the specified drive remove the DDO). .


Master Boot Options master boot record option, used to update the system master boot record and the master boot record is a virus or other damage recovery program, there are two options: Write MBR Root Code (updates the master boot record) and Restore MBR with Copy Backup (from backup master boot record).


Windows 3. .1 X Driver Options Windows 3. .1 X drive option, the installation and removal enhanced 32-bit disk access driver, you must install the Windows 3. .1 X to install the driver after a total of two options: Install Drivers (installing 32-bit disk access driver enhanced ONTRACKW. .386) And Remove Drivers (remove the enhanced 32-bit disk access driver ONTRACKW. .386). .


Driver .SYS ONTRACKD. Options to install, update, and delete ONTRACKD. .SYS driver in order to make the DOS and Windows 3. .1x can access more than 8. .4GB hard disk, there are 2 options: Install ONTRACKD. .SYS Driver (installation and update ONTRACKD. driver .SYS) and Remove Driver .SYS ONTRACKD. (removed from the system ONTRACKD. driver .SYS).


Hard Disk Diagnostics hard disk diagnostics, including a single drive test and master / slave drive test, a total of three options: Individual Drive Tests (single drive test), Master / Slave Drive Tests (test master / slave drive data transfer between situation) and Change to Through Test Mode (to change the test mode, a quick and integrity of the two, a quick test just 1 minute, and integrity of the test requires one hour, can work hard to choose). .


Display shows the hard disk Drive Information details.


Convert Drive Format Converter Ontrack drive format drive format. .


Return to previous menu to return to the previous menu.


5, View / Print Online Manaual view / print the online help. .


6, Exit Disk Manager exit DM.


5, Advanced Mode. .


Execution: DM/M (carriage return).


Starts, press the Enter key twice appeared in Figure 4 〖Note: The dialog box shown slightly〗:. .


The seven options dialog box, when the band moved to an option, the right shows the corresponding quick, user-friendly instructions.


1, Edit / View Partitions (edit / view disk partition). .


This option is used to view the disk partition information, create a new partition, and edit the partition already exists. When selected, press ENTER, a disk list dialog box, select a disk, press ENTER, in the dialog box that appears, choose whether to use a FAT32 partition, when selected, the next dialog box that appears, and the simple mode advanced hard drive install of Figure 3 〖 Note: figure 〗 exactly the same. A user can delete an existing partition, create a new partition and change the partition size. . In addition, when creating a new partition, such as press N key or Ins key, at this time, there will be a Select Partition Type (select the partition type) dialog box, if you are used to support FAT32 for Windows 95/98 startup disk machines there are four kinds of situations Optional: DOS-FAT32, DOS-FAT12/16, EXTENDED, OTHER; If you start the machine with the DOS disk, only after the three options, at this time can not create a FAT32 partition.。 Partition creation is finished, the band moved to Save and Continue, press ENTER to save and return to the main menu.


2, Format / Check Partitions (format / check disk partition). .


This option is used to format the partition or partition error checking has been created on the partition, which should be in this format. Press ENTER, select a disk, press ENTER, Select a Format Option (select to format the partition option), there are three options:.


Format All Partitions (all DOS formatted partition). .


When selected, press ENTER, the formatting will wipe all data from the disk in the prompt dialog box, select Yes, then the dialog box that appears asking whether to use quick format, here, selected Yes; the next dialog box, which lets you change the partition cluster size, Select Cluster Size (cluster size) in the box marked with "*", the default value, you can use the cursor keys to select other values; when selected, press the Enter key, PIN, you will be prompted to insert system disk, as required to insert a start to format the partition and copy system files; write, press the ESC key to return. . .


Format a Single Partition (formatted to a single DOS partition).


This option can be selected to format a partition, the operation process and the same format all the partitions, but will prompt you to enter partition label. .


Check a Single Partition (check any formatted DOS partition).


This option is used on a formatted partition integrity check. .


3. Maintenance Options (maintenance options).


Simple model with the same maintenance options, but more in the maintenance menu, a Utilities (utility) option, used for zero-filling operations and low-level hard disk format. The band of light to move Utilities, press the Enter key, select a disk, press enter, the emergence of a Select Utility Option (optional utility options) dialog, the dialog box has two options:. .


Zero Fill the hard disk Drive on a sector zero, this will wipe all data from your hard disk.


Low Level Format the hard disk low level format is selected, the dialog box that appears, press Alt + C key to start low-level formatting the hard disk. .


4, CMOS Options (CMOS options).


CMOS is used to automatically or manually change the disk type. Selected, press Enter, the dialog box that appears, select the disk you want to change; press the Enter key, in the event of the Enter CMOS drive type dialog box, enter the CMOS drive type, enter, press the Enter key to return; the band of light to move Update CMOS and Continue and press enter, when prompted to update, press the Reset, or Ctrl + Alt + Del to restart. Note that the CMOS drive type changes such as improper, will result in the computer failed to start. If possible, should be carried out in the system BIOS settings. .


5. View/Print Online Manaual (view/print the online help).


6, ALT-A Go to Automatic Mode (press ALT-A to enter the automatic mode, the simple mode). .


Disk Manager 7, Exit (exit DM).


6, other functions. .


1, easy mode and advanced mode for quick switching.


We know, DM has two operating modes, one is the primary user is ready for the simple model, and the other is an advanced mode and is usually two modes of operation when starting use the command OK switch Lai Zhi Ding. For advanced users, you may want to in the simple mode and advanced mode to switch between at any time, if repeated each time with a command line very inconvenient. Hotkey Alt-M to make your main menu in the easy mode to enter advanced mode at any time, while in advanced mode, you can enter the main menu via hotkey Alt-A return to simple mode, very convenient. .


2. advanced system hotkey option.


DM has a system menu of options, the menu items are as follows:. .


Hard drive Disk Overview, a summary will be able to give the drive model, each interrupt can read and write the most number of sectors, the hard disk's internal buffer size, each partition starting and ending addresses of the cylinder number, disk # 1, sector, type of controller and transfer mode.


System Setup Menu System Settings menu, there are the following three options: CMOS setup and configration (CMOS drive parameter settings), Replace BIOS Parameters (replacing the hard disk parameters in BIOS) and the Use BIOS Parameters (using the BIOS the hard drive parameters). .


Machine Information computer information.


XBIOS Information XBIOS information. .


Chipset Information disk controller chipset information.


Image System Area to File to the hard disk image backup to a file system, including the primary partition table, partition boot record, FAT tables and directories. .


The above information for advanced users are very useful, but they do not appear on the main menu or command line upward. The user can in the main menu, use hotkey to bring up the advanced Alt-T system options.


7, for instructions. .


DM 1, if you have not found the installed hard disk drive, it may be caused by improper installation, please check the hard drive cable, CMOS parameter settings, and hard drive jumper is correct. In some older machines such as the 486 install large hard drive, it may be that some BIOS does not set the correct disk type BIOS, Phoenix, at this point, as long as the right hard disk heads, and sectors can be successfully installed.


2 To create a FAT32 partition, you must support the FAT32 file system with Windows 95/98 disk to start the computer, and the partition size can not be less than 540MB; as with DOS boot disk can not create FAT32 partitions, and also that a similar prompt. No matter what the situation is the same installation mode. .


3, if the hard disk size 8. .4GB and operating system DOS/Windows is 3. .1x/Windows 95/95OSR1, because these operating systems cannot directly access 8. .4GB above the hard drive, so you will be prompted to install the DM support program Ontrack. .sys so the operating system can access all of the hard disk capacity.


4, for some old-fashioned hard drives, such as ST506, etc., when carried out low-level format the hard disk, you can modify the interval factor, and IDE hard drive does not support this feature. .


5. for the purpose of the actions described in this article is to build in support for the FAT32 file system for Windows 95/98 Startup disk, and 8. .4GB hard drive basis, due to hard drive capacity (means 8. .4GB following and above) and the operating system (such as whether to support the FAT32 file system), the DM may prompt dialog box, notice the difference.


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NDD usage instructions Norton Disk Doctor.


---- Norton Disk Doctor DOS version of concise user manual. .


Introduction: Symantec Norton family of products. ... mainly used in the system after a crash in DOS disk diagnostics, repair. key features and the Windows ScanDisk is similar to, but is strong, reliable. can finish many ScanDisk is unable to complete the work.


Obtain the software: It is now generally included in Norton Utilities product. . Need of a friend can go to the major software download. .


This document explains: this article applies only to operations on the disk and the physical structure and principle of Beginners who, as this is not some theoretical details for too many shows, but mainly translations appear in the NDD's main word and describes general procedures. If these malpractices urge everybody pointed out.


---- Use:. .


First of all, the software can only run in DOS, if you need to run in windows, use NDD32. to this end, we need to do the following.


In addition to the FAT32 format is not supported. .


Steps:.


1. . With Windows98/me the boot disk. . Disks and CD-ROM can be, but need to set the disk boot order in CMOS. .


2. the startup automatically by the system after entering the DOS interface or startup options menu that appears when you press Shift + F5 to go directly to the command line mode.


3. . Confirmed NDD. . Exe is located in the path, for example, in my computer NDD. . Exe is stored in C: \, so I am in command line, enter c: \ ndd. . Exe NDD Enter to enter the main interface. .


--The main interface:.


Into the main interface, we will see the following options:. .


1. .Diagnose Disk--that is, disk diagnostics, relative to the disk surface detection, you can call it a general diagnosis. can detect almost all the non-physical errors.


2. . Surface Test ---- disk surface test, the physical disk surface scan to find physical errors. . Must have been the least willing to apply all the functions. .


3. .Undo Changes--is dry well ~ ~ rarely used, I use NDD nor 100 times, but are not used at a time. used primarily for the use of NDD performs an incorrect or unnecessary operation and cause problems when using the deterioration, but this situation rarely occurs.


4. . Options ---- option. . Here you can set some default properties option, there will be selective in the description below. .


5. .Quit Disk Doctor-Needless to say ~ ~ ~ what is exited.


- General diagnostic (Diagnose Disk):. .


In the select access to Diagnose Disk, a disk list, select the required diagnostic disk, use the arrow keys to select one and then return. to select a task in one continuous scan multiple disks, you can use the SPACEBAR to select (English tips below).


Diagnose Disk detected in the conventional project are:. .


1. .Analyzing Partition Table--that is, disk partition table. disk partition tables are usually destroyed by virus, once they are damaged, you cannot use the Windows system, it will cause the entire hard drive destruction. Incidentally, during the installation of RedHat Linux8. .0 time without reasonable partition, the partition table will cause minor injuries, manifested in windows2000 (for multiple systems) to start and perform any disk operation when the system becomes slow so odd.


2. . Analyzing Boot Record ---- boot record of that. . Each operating system must be installed to the boot record is written to guide their own information. . In the computer starts, after the completion of the hardware self-test in the next step is to identify the operating system from the boot record information to the operating system loaded into memory, if the boot record is damaged, of course, can not boot the system slightly ~ ~. .


3. .Analyzing File Allocation Table-i.e. the file allocation table analysis. written in shorthand, perhaps we will be more familiar with, it is often said of FAT! it records all the files on disk in the form of organization.


4. . Analyzing Directory Structure ---- that is the directory structure analysis. .


5. .Analyzing Lost Clusters-analysis of the lost clusters on the disk. file is in the cluster is the smallest unit of storage. disk fragmented and error of read and write operations are likely to result in the loss of the cluster.


More than five projects will be followed by the analysis and diagnosis, once detected an error, NDD will prompt you to repair it. . On the specific terms of the error may be very complicated, not list them here, and in general for the NDD will clear the error object. . We only select the repair can be, and in the error report window will have three options, Yes - sure you want to repair, No - skip the error and continue with the subsequent diagnosis, Cancle - give up the task of the second diagnosis. . After choosing Yes, you will be prompted to create the Undo File (will be fixed after this so you can save a file restoration withdrawn). .. When you select Create after the NDD will prompt you to select a directory to save the generated Undo file.


When the diagnosis of this task is completed NDD will ask you whether the disk surface scan (Begin Test to determine the detection, Skip Test to skip). .-- First, do not rush into action, let me out I play ~ ~ ~. .


Diagnose Disk after all of the regular logical General errors are discovered and fixed. If you suspect that there is potential for physical hard disk errors or General error often recurring, it is necessary to detect the disk surface.


- Disk surface scan. .


We can start to scan the disk surface can also be done from the main interface to enter, access will have the following interface options:.


1. . What to test: Entire Disk Area - scan the entire area. . Area Used By Files - just scan area has been used. . Recommendation: scan the entire area (the default option). .


2. Nomal .Type of Test: Test--normal testing, suitable in General.--.Thorough Test thoroughly testing, will spend a lot of time, it is recommended that in the normal test when there is, of course, you again use sufficient and annoying trouble can also be used to completely test. Test only on Fridays .Thorough – foreigners may be to come to a complete system maintenance habits, we can not, hehe.


3. . Passes: Repetitions - encountered difficulty in the detection process to determine whether the error area, were repeatedly scanned to determine. . Continuous - relative to Reoetitions concerned, is a relatively crude method is not recommended. .


It is also necessary to say something is--Options.


Should be emphasized that: In general, we do not need the default option to set or so of this 也不 the items on which elaborate interested friend can give me a message, I will give Ling Xing. . OK, take a look at what the inside of stuff to the ----。 .


1. .General – General settings.


2. . Surface Test ---- surface scan option. .


3. .Custom Message--get some information about the system OEM.


4. . Auto Repair ---- Auto Repair. .


5. .Save--get the currently set as the default setting.


6. . OK ---- only the current settings as used in this diagnostic setting. .


7. .Cancle--cancel Setup.


In the point of possible use to the Auto Repair set, after entering the following options:. .


1。.Partition Tables2。.Boot Records3。.File Allocation Tables4。.Directory Structures。.


- All of the projects which are described above, are not discussed here. .


5. .Compression Structures--that is, the compressed drive structure, now rarely used.


6. . Surface Errors - disk surface errors. .


These six projects have three options, namely: Prompt-prompts (the user to choose whether to fix), Auto-auto repair, Never--not only to repair.


Here mainly to show that the Surface Errors, Surface Inspection inherently slow, when the bad block even more time to confirm whether the user one by one mark (for bad clusters marked to prevent the operating system to use, to some extent prevent bad cluster diffusion). . This time you can set it to Auto, to reduce unnecessary waiting time. . I have an antique hard disk has been scanned for a day of zero night Is that it (okay ~ ~ ~ not the Thousand and One Nights). .


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Add comments to a hard drive failure analysis is commonly used.


Common hard drive problems Solution:. .


1: check the COMS can't detect hard disk, use the CMOS Setup Options "in the HDD AUTO DETECTION automatically checks your hard disk, if not try to reconnect the cable, or a new hard drive IDE-look there are two separate primary and secondary; and then just get back to the factory repair to forget.


2: able to detect. .


Then run the FDISK/MBR (reset hard drive boot sector of the boot process), and then restart the computer. ".


2. .1: Can not boot, may lead to this failure is often bad most people feel terrible. Produce this failure is mainly due to the hard disk master boot sector data to be destroyed, showed signs or partition the hard disk master boot marks lost. This failure is often the culprit is a virus, it will overwrite the wrong data to the master boot sector. Some of the common market, anti-virus software provides a repair disk function, we try.。.


A: \> DEBUG (into the DEBUG program). .


-F 100 3FF0 (the contents of the data area of the winding is 0).


-A 400 (Add the following command). .


MOV AX,0301。.


MOV BX, 0100. .


MOV CX,0001。.


MOV DX, 0080. .


INT 13。.


INT 03. .


-400 G = (perform disk operations command).


-Q (retired DEBUG program). .


In this way are generally able to make you hard drive resurrection, but because of the need to repartition and format the data, it will. These are the hard disk in a number of common problems and solutions in hopes to inspire. If a hard disk failure is a serious and not be able to use some of the ways mentioned above, it is most likely due to mechanical failure. Due to the complexity of the structure of the hard disk, so it is not recommended that the user's own disassembly, but should turn to the professionals to repair.


2. .2 Norton Disk Doctor (NDD), is a hard disk partition table is used to repair a very effective tool that can automatically repair partition is lost and so on. When the hard drive crashes later, the floppy disk containing DOS system boot, then run the NDD, select "Diagnose" diagnosis. NDD full scan on the hard drive, if there is an error, it will prompt. As long as these prompted to choose your repair can be very easy to solve these problems. In Windows 9x, it is also NDD32, its graphical interface gives you more with less. .


DiskMan, disk utility is a professional expert. Rebuild partition table as its a very useful feature, very suitable for repairing a damaged partition table. For hard disk partition table is corrupted, use DiskMan through damaged partition boot record information to reestablish the partition table. In the menu toolbar, select the "rebuild partition table" DiskMan begins search and rebuild partition. DiskMan will first search the head from the cylinder 0 0 2 sectors to begin looking for hidden sectors, was moved partition table, and then search for each head first sector. Search process is divided into the "automatic" and "interactive" in two ways. . Interactively on the discovery tips for each partition is given by the user to choose whether to keep. When the automatic renewal of the partition table is incorrect, you can use interactively re-search. However, the reconstruction of the partition table repair functions can not be 100 percent to success. .


3. EASY repair data .3, in the main interface. It's the left includes 4 function buttons and two software support button. Click on the "data recovery" button, we can see EasyRecovery Professional provides several data recovery options. Including: using advanced options of the custom data recovery features, find and recover deleted files, from a formatted volumes, recover file, do not rely on any file system structure information for recovery, etc. This software also can save the recovered data in progress as well as creating a bootable emergency boot floppy disk.


EasyRecovery provides up to six kinds of data recovery mode, from a variety of ways to recover lost hard disk data. Scan the disk to find lost data. Choose to restore the file, then click "apply", you can begin to return. .


Installed Norton UnErase Wizard after the Recycle Bin on a blue shield icon, indicates that the file has been protected. Now we select the "use advanced options to custom data recovery" for data recovery operations after scanning system, a disk drive information is displayed. We are here to select a hard disk partition recovery information for the C disk, EasyRecovery Professional automatically scans the partition, then put all detailed file information displayed, including those currently in existence and have been deleted files. . In addition to EasyRecover addition, there are many such software, such as Revival, Recover, and these in the key. .


Three: fan broken: road.


, The hard disk master boot sector corruption, system can not boot. .


Use the FDISK/MBR command to restore the boot program.


2, damaged system files on other machines on the backup system, re-transmission system with the SYS command can (WIN95, WIN98 system files can be shared). .


3: DEBUG manual repair hard drive as follows:.


a: \> debug. .


-a 。.


-Xxxx: 100 mov ax, 0201 read the contents of a sector. .


-Xxxx: 103 mov bx, 500 sets a cache.


-Xxxx: 106 mov cx, 0001 set the pointer to the first hard disk drive. .


-Xxxx: 109 mov dx, 0080 read zero Magnetic heads.


-Xxxx: 10c int 13 hard disk interrupt. .


-xxxx:10e int 20 。.


-Xxxx: 0110 out of the program returns to the indicator. .


-G run.


After running 500-d500 View the contents of the address. .


This will find the contents of the start address is 6be disk partitions and found out the hard disk of the extended partition to yourself, this allows DOS or WINDOWS startup find hard disk logical disk into an endless loop, DEBUG indicator under the E command modifies the memory data as follows:.


E6BE. .


xx。.0 xx。.0 xx。.0。.





55 AA. .


55 AA indicating valid markup, do not modify the previously expressed, xx0 data "xx" to 0.


Then a good hard disk interrupt 13 modified data is written to the hard disk on it, as follows:. .


A:\>debug 。.


a 100 modified 100 that address the assembly instructions. .


-Xxxx: mov ax, 100 0301 wrote a sector of the hard disk.


-Xxxx: here, press enter. .


-G run.


-Q quit. .


Then run the FDISK/MBR (reset hard drive boot sector of the boot process), and then restart the computer. ? Use this method to handle simple enough? and it has another advantage is that you can keep the data on disk! if you do not need to protect data, there is a simpler approach:.


Method 2: Qiao based BIOS, you know the DM with DM unlocking software is not dependent on the motherboard BIOS the hard drive to install software identification, (so does not recognize large hard drive can also be used on the old motherboard to use DM to install large-capacity hard drive). Will be hard even in the BIOS set to "NONE", DM can identify and deal with the hard disk. .


The first thing to do is to find and hard drives matching DM Software (for JS to or go online to rendering), and then copy the DM to a system disk. Connect the hard drive locked, press the del key on the CMOS settings, all the IDE hard drive is set to NONE (this is key!), save the settings, restart, when the system starts with lock ". Run DM after startup, you will find the DM can bypass the BIOS, identify the hard disk, select the hard disk, the partition is formatted, the OK. So simple? in this way the weaknesses of the data on the hard disk is full.


3:. . Repair bad sectors hard logic. .


For hard drives, logical bad road repair is relatively simple, and when the software detects that a hard disk has bad road, first of all have to be bad road as logical bad road, bad road still exists, then the repair physical bad track way to repair it.


(1) through the logical bad sectors hard disk scanner repair. .


For the logical bad road repair method is relatively simple. For users who use Windows 98 system, you can click on the "Start → Programs → Accessories → System Tools → ScanDisk" menu item in the dialog box that appears, select the partition you need to scan, select the "full" and "automatically fix errors" option, click the "start" button.


For users using Windows 2000/XP systems, you can double-click to open "My Computer", right-click the partition that needs repair, select "Properties" command, the dialog box that appears, click "Tools" button, click " Error-checking "option group" Start Check "button. In the dialog that appears select the "Automatically fix file system errors" and "Scan for and attempt recovery of bad sectors" option, click the "Start" button. .


By these means can usually be resolved hard disk logical bad road. If you cannot properly into Windows, you can use a boot floppy disk to start the computer, and then prompt type: "Scandisk" X (x is a specific hard drive letter) on hard disk scans and repair. Once you find a bad road, the program will prompt you whether to "Fixit" (fix), select "Yes" to begin restoration.


(2) the logical bad sectors hard disk repair by DM. .


Through the Windows with ScanDisk to repair the hard disk logical bad road will not harm the security of the data, but the program's capacity is limited, if you find the disk scanner repair hard drive remains bad road, you can consider the adoption of the DM to be repaired.


Repair hard disk bad sectors in the use of DM, first get the data back to the hard disk to other media. DM repair bad sectors on the hard disk when all the data will be deleted, so you must first back up your data. .


First of all download DM universal Edition and produced a good DM boot floppy disk, and then do one of the DM and entering the main interface. Position the cursor to "(M) aintenance Options" (maintenance options) option, and then press the Enter key, the secondary interface, position the cursor at the tilities "(U)" (Tools) option, the media will be asked to select the desired repair hard drive, you can select it, and then press ENTER to enter the secondary interface, position the cursor to "Drive" Zero Fill (disk zeroes) option, press the Enter key will happen after the red warning message. . Done, and then re-partition the hard drive can be. This action not only through the majority of hard disk damage can be repaired, but not as low-level format on the hard disk so harmful. .


5. fix the hard disk physical bad road.


To physical bad sectors in terms of the ordinary user simply Wufaxiufu, we only can do is Liyongyixie disk software Qiangqidandu divided into one area and try to hide, so the head will not read it, so can to some extent Yanzhangyingpan life. Needs to be stressed that the use of the hard disk has bad sectors, we must always do backup work, because there was a bad sectors on the hard disk, the more the bad sectors will come one after another. .


(1) through the Disk Genius shielded harddisk physical bad road.


After downloading Disk Genius, according to the method described earlier, make a boot floppy, and then download the archive decompression obtained, the Disk Genius of the main program "Diskgen.. Exe" is copied to the floppy disk. Of course, if there is no floppy disk, the software can also be stored in the hard disk or other medium. .


Use the floppy disk to start the computer, "at the prompt, enter" command and return Diskgen, you can launch the program. After entering the program's main interface, press the ALT key to activate the function menu, select "tools → hard surface detection" menu command. The system displays the current partition a hard disk "test? bad sectors on the surface of the list will be saved to BACDSECT." prompt in .TXT, select "scan" and a carriage return at scanning mode selection dialog box, in the scanning mode: press sector scan, press track scan and press cylinder scanning, it is recommended that you choose "slice" option. . Completed, there will be a question of bad sectors, there were several bad sectors message. .


Restart Windows, the data on the hard drive of all backup to other media, and then open the floppy disk BACDSECT. .txt file, in this file detail records the results of the earlier scan, write down, in the following we will use this information.


Re-start the computer with a floppy disk, at the prompt, enter "Diskgen" command and press Enter, to enter the main program interface, press the Alt key to activate the function menu, select "partition → Delete Partition" menu command to remove all the existing partition. Then select "District → New partition" (or build extended partition) menu command, according to BADSECT. . TXT documents record the location of bad sectors, bad sectors into the space around 10 ~ 20MB is divided into a separate area (This is done to a portion of space to spread bad sectors). .


Note: partition operation, if there are errors in the software provided with the "reload" command, you can put the hard drive partition is restored to the initial state. Because this software in filing all operations before it is saved in memory so you can use multiple partitions containing bad road partition size control in the specified scope.


Finally, press the Alt key to activate the function menu, press the Tab key to select the partition that contains bad sectors, select the "partition → hidden" menu command, you can be hidden partition that contains bad sectors. As shown. .


All district ready to save the settings and restart the computer, and finally through the Windows Format command to format all partitions. At this point, shielded bad road work is completed.


(2) through "bad tracks the efficiency of the source hard disk repair software" repair bad sectors. .


"Efficiency source hard disk tracks repair software" can intelligently repair hard drive bad road, this software will also need to make a boot floppy disk to use.


Run the downloaded program, insert a floppy disk in the floppy drive, then run the program, the program main interface, click the "Create Disk Tools" button, you can build a tool to detect bad sectors hard disk drive. Start the computer with the floppy disk, start the program, in the main interface, select the "smart repair bad sectors" option to begin to repair bad sectors on the hard drive. .


At the time of the adoption of the software to the bad road repairs, it is recommended that you move the data on your hard disk for backup, and restoration of the former through the software thoroughly bad track detected, and then to fix it.


Disk boot failure troubleshooting start the computer, do not see the Windows splash screen, but the emergence of "Non-System disk or disk error, replace disk and press a key to reboot" (non-system disk or disk error) reminder, This is a common hard disk failure - unable to boot. .


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Add a comment MHDD.


MHDD 2. .9 Use Xiangjie (absolute confidentiality only exclusive). .


About MHDD.


1, MHDD Russian Maysoft company produced professional hard disk tool has many other hard disk tools can not match the power, it is divided into the free version and pay the full version, free version of this paper is the detailed usage. .


2, whether to CHS MHDD or LBA mode, you can access to the large capacity hard drive 128G (accessible sector range from 512 to 137438953472), even if you are using a 286 computer without BIOS support, and without any disruption to your support.


3, MHDD best run in pure DOS environment;. .


4, MHDD can not depend on the motherboard BIOS to directly access the IDE, but you want to be careful not to use the original Intel motherboard; the brand.


5, do not detect the hard drive to run MHDD;. .


6, MDD at run time, you need to record data and therefore cannot be written to protect the storage device (such as write-protected floppy disk, CD-ROM, etc.).


MHDD commands Xiangjie. .


EXIT (hotkey Alt + X): exit to DOS.


ID: hard drive detection, including the hard drive capacity, head count, the number of sectors, SN Serial Number, Firmware firmware version number, LBA value, to support the DMA level, whether to support the HPA, whether to support the AAM, SMART switch state, and switch-level security model Status ... ... etc.). .


INIT: hard disk initialization, including Device Reset (hard-reset), Drive Parameters Setting (set hard disk parameters), Recalibrate (reconditioning).


I (hotkey F2): simultaneous ID command and the INIT command. .


ERASE: quick delete function, each deleting units equal to 255 sectors (data recovery).


AERASE: Advanced delete function, you can specify the data sector by sector within a paragraph to completely remove the (slower than the ERASE, data recovery, the same effect), remove the unit equal to one for each sector. .


HPA: HDD capacity cut feature, you can reduce the capacity of your hard disk so that the BIOS detects capacity reduction, DM, independent of the BIOS detects the hard drive capacity of software will still show the raw capacity hard disk.


NHPA: to restore the true capacity of hard drive capacity. .


Shear capacity of the RHPA: ignore, showing the real capacity of the hard disk.


CLS: clear screen. .


PWD: USER password to the hard drive with up to 32-bit, enter to cancel. Locked hard drive completely unable to read and write, low cell, partitions and all read and write operations are not valid. If the password is successful, press the F2 key when you see a Security back ON red. Note that you have set up a password you must turn off the power after the startup will enable password;.


UNLOCK: Unlock the hard drive. First select 0 (USER), then the password is correct. Note: Select 1 (Master) can not solve the password. .


DISPWD: unlock the password, select 0 (USER), and then enter the password correctly. Using DISPWD must be preceded with the UNLOCK command to unlock. It should be noted that in addition to UNLOCK and DISPWD command can solution password, there is no way to unlock it. But once the password is forgotten (or typing errors), nor is there any way to unlock it. If the solution password is successful, press the F2 key when you see a Security has a gray OFF later. Note: option 1 (Master) unable to untie the password.


RPM: hard drive speed measurement (very inaccurate measurements are different each time). .


TOF: fan zone for the specified build image files (maximum 2G).


FF: from image file (maximum 2G) to restore the sector segment. .


AAM: automatic noise management. You can use AAM (automatic noise management) the command "what you hear is what you get" type of hard drive noise. Press the F2 key words if you have AAM would indicate that the hard drive support for noise control. Type the AAM command, shows the current hard drive noise levels, and can be immediately heard the noise of the hard disk read-write, it is necessary to pay attention to the hard drive's noise and performance is directly proportional to the larger, noise, higher performance, and vice versa. . .


FDISK: quickly FAT32 formatted hard disk is divided into an area (in fact, just write a MBR master boot record), and set to activate, but also need to use a full format FORMAT.


SMART: SMART parameter display, and can carry out the relevant operation on SMART. SMART ON SMART function can be opened, SMART OFF can turn off the SMART function, SMART TEST SMART can detect. .


PORT (hotkey Shift + F3): displays all the hard disk IDE interface, press the appropriate numbers to select the appropriate port hard drive, after the port will be recorded in the/CFG directory .CFG file MHDD., 1 represents the IDE1 at primary, 2 of 3 from the IDE1, IDE2 mouth, says 4 IDE2 mouth from that, the next time you enter the mouth after MHDD became the default port, edit .CFG file MHDD. change this value, you can change the default port of detection MHDD. . . CFG files). .


CX: kunteng CX and LCT (LA, LB, LC) series hard disk seek test, you can test these two types of hard disks on the Philips TDA5247 chip stability (because the quality is not good 5247 chip in most easily when you frequently seek others). Press the ESC key to stop. This command can also be used on another hard disk, it is mainly through frequent random seek to upgrade the hard drive motor driver IC temperature to test the hard drive in high load stability.


WAIT: wait for the hard drive in place. .


STOP (hotkey Shift + F4): closes the drive motor.


IBME: See IBM hard drive defects list (P-LIST). Large amounts of data to be recorded at this time, the greater the defect table, the resulting file (in IBMLST directory) the greater the presence of the floppy disk if MHDD, then there may be space;. .


FUJLST: view Fujitsu hard drive defect table (P-LIST). At this point to record a large amount of data, defects in the larger the table, the resulting file (FUJLST directory), if there is a floppy disk, then MHDD, there may be insufficient space.


MAKEBAD: artificially create bad sectors within a designated area. Note that, by its very difficult to repair bad sectors generated. .


RANDOMBAD: randomly in various places on your hard drive to generate bad track, press the ESC key to stop the build. Note that the generated bad track is difficult to repair.


BATCH (hotkey F5): Batch. .


R (key F3): hard reset. For example, use the PWD password, in order to enable the password immediately to take effect, you can use this command.


FUCKFUJ, KILLFUJ, AKILLFUJ: Fujitsu hard drive is damaged in the order, must be used with caution, otherwise the hard disk will be completely damaged beyond repair. All the normal of a Fujitsu hard drive, using the FUCKFUJ command, only one or two seconds, the prompt destruction of the successful re-started, even the self-test movements are gone, the board is not detected, the hard disk completely scrapped. .


SCAN (key F4): disc surface scan, you can use a specific pattern to fix the bad sectors, including:.


[Scan in: CHS / LBA]: to CHS or LBA mode scanning. CHS 500M only valid under the old hard drive. .


[Starting CYL]: set start a scan of the cylinder.


[Starting LBA]: the LBA value is set to start scanning. .


[Log: On/Off]: is written to the log file.


[Remap: On / Off] (re-image): if fix bad sectors. .


[Ending CYL]: set the stop scan cylinder.


[Ending LBA]: LBA value is set to terminate the scan. .


[Timeout (sec)]: set the timeout value from 1 to 200, the default value is 30.


[Advanced LBA log] (Advanced LBA log): This is not supported. .


[Standby after scan]: turn off hard disks after the end of the scanning motor, so that you can make the SCAN scanning is finished, the hard drive can be automatically cut off power supply, but host or powered (belonging to the duty of functions).


[Loop the test / repair]: loop detection and repair, used repeatedly to fix stubborn bad sectors. .


[Erase WAITs] (removing the wait): this is primarily used to repair the bad road and repair effect of better than REMAP, especially IBM hard disk bad road is the most effective, but be aware of the repaired parts of the data is damaged (because the Erase each WAITS to delete units is 255 sectors). Erase WAITS time default is 250 milliseconds, the value can be set ranges from 10 to 10000. If you want to set the default time, you can open MHDD/CFG directory. . This value is mainly used to set the time to read the bad sectors MHDD determine the value (that is, when reading a sector block read time, if reached or exceeded the value of the block is bad sectors on that and start trying to fix), general circumstances, do not change this value, the definition of bad sectors will be affected and the recovery effect. .


The first line of the screen the left half for status register, the right half is the error register; in the middle of the first line of the screen (in the BUSY and AMNF) there is a blank space if the hard drive is combined with a password, which displays the PWD; if the hard disk was cut, HPA, which displays the HPA;.


The second line of the left part of the screen for the current hard disk physical parameters, right half of the current position is being scanned;. .


The lower right corner of the screen to Start the timer, that begins to scan Time represents the time elapsed time, End time of the conclusion that it is expected that, after the end of Time will be displayed, indicating the total Count spent many long hours.


In the scan, each representative of a long box, 255 sectors (in the LBA mode), or on behalf of 63 sectors (in the CHS mode);. .


The scanning process may, at any time, press ESC key to stop;.


Box from top to bottom order that from normal to abnormal, read and write speed from fast to slow. Under normal circumstances, there should be only the first and second gray box;. .


If there is a light grey square (the third square), on behalf of the Department read time-consuming;.


If the green and brown box (the third and fourth box), then read on behalf of anomalies here, but has not yet created bad sectors;. .


If there is a red square (sixth, which is the last block), you represent to read here, will produce bad road;.


If there is a question mark? , Then here to read errors, serious physical bad sectors, beyond repair. .


Note 1: some read/write speed slow hard drive if you use the F4 SCAN scanning MHDD and EraseWAITS open will be able to see, or even a lot W or across many colorful square, this shows that the reason why this type of hard drive read/write speed is slow, it is because a lot of disc sectors have defects, resulting in reading and writing each slice will spend long periods of time, together led to an entire hard drive read/write speed slow.


Note 2: The old version of the drive (2,3 G below) and because low performance, slow, and therefore F4 SCAN detection rarely the first box, and a second and third box, there may even be the first 4 box (green box), this situation is due to the old slow hard disk read and write due to, does not mean that those sectors abnormal reading. .


While scanning using the arrow keys can be flexibly control the scanning process, much like VCD player: fast forward 2% ↑ ↓ back 2%; ← back 0. .1% → fast forward 0. .1%. Flexible use of arrow keys can be unstable and bad track stubbornly section repeatedly scan and repair;.


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Add comment June 9. .


Common recovery partition software.


Hard disk repair tool. .


1、NDD。.


<> Cable extended partition is extremely effective, can not correctly restore damaged BOOT boot after partition. Do not support the FAT32 system. .


Scope: master partition table is lost/recover your lost and an extended partition FAT16 logical drive.


Applicable to: Beginners ~ master. .


2、DISKEDIT 。.


<> Edit any of the contents of the hard disk physical sector. Through its various functions, hand-finished on the hard drive data file recovery. Do not support the FAT 32 system does not support long file names. .


Scope: of all the circumstances of the logical and physical hard drive.


Applicable to: Intermediate ~ master. .


3、TIRAMISU 。.


<> Automatic analysis and restore hard disk files. The hard disk structure of pre-analysis of the hard disk virtual directory structure, and may file for each subdirectory automatic recovery. When FAT1/FAT2 table when all is lost, assuming that documents stored in consecutive sectors in the. Does not support long file names, need temporary storage space (such as a floppy disk, hard disk or network disk). Notebook computer repair is a complex network environment needs: the need for disk access under DOS and DOS support for PCMCIA network card. All damaged FAT table, small file recovery more likely. Fix long file name, be used in conjunction with other tools. .


Scope: you need to recover important data on your hard disk, and revolving disk space.


Applicable to: Beginners ~ master. .


4、KV300-[F10] 。.


<> To restore the master boot record, logical drive BOOT. No analysis of the disk structure, the system does not support FAT32. The destruction of the system area (F AT / ROOT) hard disk can not be repaired, but will not cause data loss. .


Scope: a boot sector virus/master boot record is lost (FAT16)/logical disk BOOT areas lost (FAT16).


Applicable to: Beginners ~ master. .


5、FDISK/MBR 。.


<> Master boot record code coverage area. Not rebuild the primary partition table. .


Scope: a boot sector virus/master boot record code is lost.


Applicable to: Beginners ~ master. .


6. FDISK partition creation.


<> Rebuild the primary partition table. Master boot record is not covered by the code area. Value with the F6 and FAT2 table filled FAT1 within each head first # 1, # 7, Sector, will cause data loss. .


Scope: new hard drive/partition.


Applicable to: Beginners ~ master. .


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Add a comment with the DUBUG.


Error processing SSI file. .


1. backup the master boot record disk into a single file:.


C: \ DOS> DEBUG. .


-a100。.


1078:0100 mov ax, 0201; 02 = Reading, 01 = number of sectors to read. .


1078: 0103 mov bx, 0200; read back into memory at 0200.


1078:0106 mov cx, 0001; 00 = track number, 01 = starting sector number. .


1078: 0109 mov dx, 0080; 00 = 0 head, 80 represents the hard disk.


1078:010 C int 13; BIOS disk interrupt. .


1078: 010E int 20; end.


1078:0110 ^ C. .


-G = 100; from 0100..


Program terminated normally; program display. .


-CX registers rcx; defines the size of the saved file.


CX 0000; set the file size. .


: 300; 300H = 768 bytes.


-N mainboot. . Dat; stored in file mainboot. . Dat in. .


-w ; 写文件。.


Writing 00300 bytes; program display. .


-q ; 退出 DEBUG。.


Second, to restore the master boot record. .


C:\DOS>DEBUG。.


-N mainboot. . Dat; into the backup data files. .


-l ;装入。.


-A100. .


1078: 0100 mov ax, 0301; 03 = write, 01 = number of sectors.


1078:0103 mov bx, 0200; from the memory of 0200 began to write. .


1078: 0106 mov cx, 0001; 00 = track number 01 = starting.


1078:0109 mov dx, 0080; 00 = 0 head, 80 on behalf of the hard disk. .


1078: 010C int 13; BIOS disk interrupt.


1078:010 E int 20; end. .


1078:0110 ^C。.


-G = 100; from the 0100 execution. .


Program terminated normally。.


-Q; exit DEBUG. .


! Note: since data contains the partition table, partition, cannot be used before the partition to restore the backup data. Cannot be used between different hard drives.