Test method for soft trouble of hard disk

Because the computer http://www.aliyun.com/zixun/aggregation/18673.html "> hard disk storage capacity, fast reading and writing speed, and installed in a closed chamber, working environment clean, stable performance, easy to use, It is widely used in computer. However, if you do not use the hard disk or infected with the virus, easy to cause failure. The hard disk failure is divided into two kinds, hard fault and soft fault, in which the soft fault occurs more frequently. Most of the symptoms are the hard drive can not start. When the hard disk appears soft fault, it is important to take effective emergency treatment, the "three checks" described below are only the inspection and processing steps relative to the most common failure conditions.

First, check the CMOS settings and processing methods:

The performance of the hard disk soft fault caused by the CMOS system setting error is different. Some on the screen after no display, and some only show a dead cursor, and some show "Non-system disk Error" (not system disk or disk error) and other prompts. In particular, when transferred from a to C disk, the screen appears "Invaild Driver specification" (invalid drive), so that users mistakenly think hard disk "0" track bad or hard disk system damage, so that the use of low-level format, the reconstruction of DOS partitions, Re-copy the DOS system and advanced formatting methods. Although the hard disk initialization can eliminate soft faults, the hard drive data is corrupted. Therefore, because the CMOS set error caused by the soft fault without the reset CMOS method to solve, there must be loss. And because the CMOS set error caused by the soft fault is more common, we check the soft failure of the best step from the Check CMOS system settings start.

Inspection and Processing methods:

First check the backup battery is not valid, such as failure to replace the battery, and then enter the CMOS settings. For high-end computer, you can press the DEL, ESC key or Ctrl-backspace, Ctrl-alt-esc and other key combinations to enter the CMOS setting state. For low-end machines, you can only boot the setup software from the a drive into the CMOS setup state. In CMOS inspection, focus on checking the correct hard disk parameters in the CMOS system settings, especially checking that the hard disk type model (type) is consistent with the parameters provided by the hard drive manufacturer. If an error is found, change the parameter to the correct parameter that was previously backed up, save the CMOS settings, and then reboot the system with the hard drive. In case you cannot find the backup parameters, for some high-end machines, you can use the function option in the CMOS settings "HDD Auto Detection" (hard disk detection) to find the correct hard drive parameters. If the CMOS settings do not have this option, you can open the machine, the hard disk surface generally has a label on the hard drive parameters introduced. Even if not introduced, at least the name of such a hard disk, and then according to the hard disk name access to various types of hard disk parameter data, you can find the correct configuration parameters. In addition, the use of DM and other applications can also detect the hard drive parameters (the condition is a drive must be able to lift).
Second, check the virus and treatment methods:

When a soft failure occurs on a hard drive, the screen displays "Invaild Partition table" (invalid partition tables) after startup, and it should first be thought of as a possible cause of the virus and usually a fatal virus that destroys DOS or DOS boot records.

The aim of the virus is to destroy the system, especially the operating system virus, which replaces the boot portion of the normal operating system with the virus zone. When the system starts, the virus enters the memory, once this kind of virus runs directly or indirectly, will destroy the hard disk system. There is a soft failure on the hard drive and you must find out why. Detection of the hard drive with a clear poison disk, found that the virus should be cleared in time. Reboot the system with C disk, if unsuccessful, transfer the system to C disk again. If it is not normal to start, the Backup DOS partition table into the hard disk, such as no longer, can only take the hard disk initialization. Some viruses with the hands of the cleaning disk may not be able to check out, we can use the help of Debug, PCTools and other tools to detect and clear.