When we determine the hard disk has bad sectors, we can not determine it caused by logical bad sectors or physical injury in the end. We can only follow the steps from simple to complex to repair, the general logical bad sectors can be solved through a simple software fix, however, some physical bad sectors will need further repairs to ensure the hard disk data security and normal use. How to repair hard drive? Here is a detailed method.
1. Logical bad sectors Repair.
Under normal circumstances, a number of legitimate software will write some information on certain sectors of your hard disk, other software can not access this sector, in which case, the hard disk detection tools will also be mistaken for the sector had bad sectors, the general This situation without the need for repair,
There is another situation that is caused by improper use, for example, when the hard disk read data, in the accident it restart, there may have logical bad sectors, in serious cases can even produce physical bad sectors. At this point we can use the Windows own disk tools to scan the hard disk and automatically fix the error.
Specific steps are as follows (in Windows XP for example), in my computer select the drive letter and click the right mouse button, the pop-up drive in the Properties window, select “Tools → Check Now” and select “Automatically fix file system errors” and the “Scan for and recovery of bad sectors” and then click Start.
This method does not fundamentally solve the problem. More appropriate way is backup the hard drive data, and then re-format the hard disk partition, in general, if the hard disk failure is just the logical bad sectors, we can completely solve the problem. Of course, it is recommended, after carrying out re-partition and format, using DOS hard drive under the Scandisk again tested to ensure that the logical bad sectors hard drives are fully restored.
2. Repair physical bad sectors
If you follow the steps above to re-partition formatted, still find the hard disk has bad sectors, it is likely that a physical hard disk has bad sectors. In fact, in this case, Another software can be used for low-drive cells, carrying out re-format the partition, and some hard disk damage may also be resolved in this way.
(1). Low-level format the hard drive
There are two ways, one is through the tool which motherboard BIOS comes with, another is through software to low-level format.
(2). Shield Physical bad sectors
We hide the bad sectors into an unused partition, you can use the software, PQ Magic, this software has a DOS and Windows version, but we are usually discovered the hard disk still has a bad area after formatting, but this time did not install the Windows system, so recommended the use of DOS version of the PQ Magic.
If you can’t repair hard drive by yourself, the hard disk is still under warranty conditions, you can request the vendor maintenance, if not in warranty period, it is only to spend some money to give professionals repaired!



