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中国DOS联盟论坛 » DOS学习入门 & 精彩文章 (教学室) » Question about hard disk logical locks View 847 Replies 3
Original Poster Posted 2003-12-16 00:00 ·  中国 四川 巴中 中移铁通
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I set a hard disk boot password in coms on my IBM laptop, and now I've forgotten the password, so the hard disk can't boot. Luckily I didn't set a power-on password. I'd like to ask, is this hard disk password the hard disk logical lock? Can I use the methods on the DOS forum to remove the password? Thanks!
Floor 2 Posted 2003-12-21 00:00 ·  中国 广东 广州 荔湾区 电信
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This isn't a logical lock. On IBM laptops it is recorded in CMOS. Try changing the hard disk serial number and see if making it identify incorrectly will work!
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Floor 3 Posted 2004-01-02 00:00 ·  中国 河北 沧州 联通
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Your hard disk can't boot, but can a floppy disk boot? If it can, then use this in debug:
o 70 00
o 71 00

and that should do it,
Floor 4 Posted 2004-01-29 00:00 ·  中国 江苏 淮安 洪泽区 电信
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If you've forgotten your password.
At the DOS prompt enter the debug command
to enter edit mode
then enter
o70 21
o71 21
If you're lucky,
you'll crack it.
Hehe!
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