硬盘加密后清除方法（Method for clearing hard disk encryption）.docVIP

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硬盘加密后清除方法（Method for clearing hard disk encryption）.doc

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硬盘加密后清除方法（Method for clearing hard disk encryption）

硬盘加密后清除方法（Method for clearing hard disk encryption） Some hard disks have hard write protection buttons to see if hardware is write protected If there is no hardware write protection, use PartitionTableDoctor30, PartitionMagicV8.05 and other tools to see whether the logic lock, the above two software can be unlocked! Three effective logic lock unlock methods are introduced (1) use DM and other software to lower the hard disk format. This method can not keep the hard disk data. Boot into the BIOS settings, the logical lock of the hard disk is set to None. Restart, use the floppy disk boot to DOS environment, run prior copied to another floppy disk of the DM program, it can correctly identify is set to the None disk, the low-level format (only the first few can low down track, which soon began to format the stop). This low-level formatted hard disk can be started, re partitioned and formatted. (2) modifying the partitioning information through assembly statements, which is a little more complicated, but preserves some or all of the data. First, prepare a DOS startup disk and copy the Debug and Fdisk programs onto it. On the other computer, the read-only IO.SYS file on the floppy disk to cancel, and use binary editing tools (DOS Debug and PCtools Windws Ultraedit, modified) to search for the first 55AA string to any character (such as 66BB). Next, start using the modified floppy disk to work on your computer. After startup, the modified partition table is manually modified by the Debug program, as follows: A:\debug -a -xxxx: 100, MOV, ax, 0201 (read only the contents of a sector) -xxxx: 103, MOV, BX, 500 (set a cache address) -xxxx: 106, MOV, CX, 0001 (set the logical pointer of the first hard disk) -xxxx: 109, MOV, DX, 0080 (read zero head) -xxxx: 10C int 13 (hard disk interrupt) -xxxx: 10e int 20 -xxxx: 0110 (exit program) -g (running) -d 500 (view the register at address 500) Starting from address 6BE is the information of the hard disk partition and modifies the mem