Repair the logical lock on the hard drive

No matter what device can be used to boot the system, this situation is mostly the hard drive is infected by the virus, the "logic lock" lock. After the logical lock, no matter what device can not properly boot the system.

The way to unlock a logical lock is to modify the IO of a startup disk using the binary Editing tool on a normal machine. SYS "file, which is to search for the" 55AA "string in this file, and then modify it to other values. With the system floppy disk can be successfully started with the locked hard drive. However, because the hard disk partition has been corrupted and cannot use Fdisk to delete and modify partitions, you can use software such as Diskman to restore or rebuild partitions.

DM is not through the BIOS to identify the hard drive, even if the BIOS set the hard disk is "NONE", you can identify the hard disk and partition operations. Therefore, the DM software can also be used to unlock the hard disk.

First, the DM into the system disk, and then the locked computer boot, into the BIOS setup, all the IDE interface is set to "none" after saving, and then through the floppy disk to boot system, the system after starting equals no hard disk. The system will be opened after the DM, you can find that the DM can identify the hard disk, then the hard disk format can be. Although this method is simple, the data saved on the hard disk is not.