Hard drive bad road introduction and maintenance

The hard drive's bad road is divided into two kinds: logical bad way and physical bad way. The logic bad way is the soft bad road, mostly is the software operation and the use

Improper cause, can use the software to repair; the physical bad way is the true physical bad way, it indicates the hard disk's surface track

caused physical damage, most of which can not be repaired by software, only by changing the hard disk partition or the use of sector to

Solve.

Know the Qingdao hard disk maintenance produces bad way principle, now let us look at the hard drive produces the general phenomenon of bad road.

When you open, run, or copy a file or program, the hard drive slows down, reads the disk over and over for a long time, and then

Error, or Windows prompts "Unable to read or write to file", a blue screen occurs when serious.

The hard drive reads and writes the sound from the original "Cha Cha" The Friction sound changes the strange sound.

Automatically run ScanDisk for hard drive scans every time you enter the system, or the red "B" sign when you scan the hard disk

Remember.

When the virus is excluded, the computer cannot boot from the hard drive when it starts. Self-test, screen prompts "Hard disk drive

Failure "or" Hard Drive controller Failure "and similar information.

When the hard drive fails to boot, boot with a floppy disk, "sector not found" or "general error in

Reading drive C "and other information. There is a can go to the hard drive is the letter, but cannot enter.

Second, check the virus and treatment methods:

When a soft failure occurs on the hard drive, the screen displays "Invaild Partition table" (invalid partition tables) after startup.

This should be the first thought of the possible cause of the virus, and is usually a fatal virus to the DOS partition or DOS boot memory

Recorded damage.

The purpose of the virus is to destroy the system, especially the operating system virus, which replaces the boot of the normal operating system with the virus zone

Part. When the system starts, the virus enters the memory, once this kind of virus runs directly or indirectly, will destroy the hard drive system

Ec 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 does not start properly, it will back up the DOS

The partition table is copied to the hard disk, if not again, only hard disk initialization can be taken. Some viruses may not be able to check out the poison in their hands.

, we can use DEBUG, pctools and other tools to detect and clear.

Third, check the turntable situation and treatment methods:

1.A Drive after normal startup into C disk failure, the screen appears "Invaild Drive specification".

From the hint, the system does not recognize the existence of the hard disk. If the CMOS setting is correct, it is usually considered the hard drive "0" magnetic

Bad way causes the partition table in the "0" cylinder "1" sector in the disk to be corrupted.

Processing method: After using a disk to boot the system, rebuild the DOS partition, change the boot partition to the 1 cylinder, and the disk for the advanced grid

of the type.

The 2.C drive failed, and A disk was started and transferred to C.

The author found that sometimes the CMOS hard disk parameters are incorrect, although a disk can be launched into the normal C disk, but C disk can not start,

Read and write is not normal, sometimes can only column directory. If the CMOS parameters are correct, most of the reason is the C disk DOS system file error.

Symptom is to start C disk, the screen will appear "Error Loading operating System" (Error install DOS)

or the "Missing operating system" (DOS loss, system damage) and other prompts.

Processing method: With a clean system disk (DOS version consistent with C disk) from a drive to remove the DOS system files on C disk,

Use the SYS command to transfer the system to the C disk.

After the "three inspection" if the soft fault can not be ruled out, in the case of the confirmation of no hard fault, we can only take the Qingdao hard disk data recovery initialization method to remove the soft fault. The so-called hard disk initialization, refers to the hard disk low-level format, partition, advanced format.

Low-level format can take the function of the CMOS set state option to operate, you can also use DM, Diags, Setup

such as software to complete the partition, advanced format can take DOS command complete (partition: a:fdisk←; Advanced format:

A:format c:/s←).

It is important to check and deal with failures, but precautions are also important. If the disk is regularly detected, try not to use foreign

Disk, even if you want to use, before running with a virus cleaning disk to detect, to prevent the virus, regular inspection, replacement of back-up batteries,

Configure CMOS parameters correctly, back up CMOS parameters, DOS partition tables, and DOS boot records. These jobs are usually done,

Can effectively prevent the hard disk soft fault occurred. Even if there is a failure, can quickly be ruled out, protect the hard disk data.

Test method for soft trouble of hard disk

Because the computer hard disk storage capacity is large, read and write speed, and installed in a closed chamber, working environment clean, performance

It is more stable and easy to use, so it is widely used in the computer. However, if the hard disk data recovery in Qingdao is improperly used 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. Fault phenomenon is large

are shown as hard drives that do not start from boot. When the hard disk appears soft fault, it is important to take effective emergency treatment, the following

Shaoxing's "Three checks" is only relative to the most common failure conditions of the inspection, processing steps.

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 boot after the screen without display, some only

Displays a dead cursor, some displays "Non-system disk Error" (not system disk or disk error) and so on. Special

When transferring from a to C, the screen appears "Invaild Driver specification" (Invalid drive),

The user mistakenly thinks the hard disk "0" track bad or hard disk system destroys, thus uses the low-level format, the reconstruction DOS partition, afresh

Copy into DOS system and advanced formatting methods. Although the hard disk initialization can eliminate the soft fault, but the hard drive data is broken

Bad. Therefore, because the CMOS set error caused by the soft fault without the need to reset the CMOS method to solve, there must be a loss

Lost. 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 Setup to start.