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中国DOS联盟论坛 » DOS疑难解答 & 问题讨论 (解答室) » Help! My computer won't boot, urgent! ! ! View 2,858 Replies 12
Original Poster Posted 2004-08-16 00:00 ·  中国 北京 联通
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I am a win2000 machine, and the administrator password is lost. My computer can't boot. I heard that there is a kind of DOS thing that can crack the administrator password. Can someone tell me what that DOS thing is? Thank you, everyone.
Floor 2 Posted 2004-08-16 00:00 ·  中国 福建 厦门 电信
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Is the system in FAT32 format?
When booting from the boot disk into the system, rename SAM in winnt\system32\config\SAM, SAM.log to SAM1, SAM.lo_
Or directly delete it! After restarting, the password of Administrator is empty.
If the system is NTFS
Use O&O Bluecon2000 : set the password of Administrator to 123456 or ERD Commander ...
Floor 3 Posted 2004-08-16 00:00 ·  中国 北京 联通
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If the system is in FAT32 format, what kind of boot disk is it? I don't understand. Can the moderator explain it clearly?
Floor 4 Posted 2004-08-16 00:00 ·  中国 广东 广州 白云区 电信
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For FAT32, you can use a Win98 or DOS 7.1 bootable disk.
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Floor 5 Posted 2004-08-16 00:00 ·  中国 福建 厦门 电信
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Any computer that can boot up will do! Regardless of CD-ROM or floppy disk, boot to DOS, then: del c:\winnt\system32\config\sam and then restart the computer, log in with Administrator, and the password is empty. If it doesn't work, change the above to: del c:\winnt\system32\config\sam*.*
Floor 6 Posted 2004-08-16 00:00 ·  中国 福建 厦门 电信
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The following is a quote from JonePeng's post on 2004-8-16 21:31:12:
For Fat32, you can use a Win98 or DOS 7.1 boot disk


Simply format a disk with "format a: /q /s" or sys a: a new disk.
Floor 7 Posted 2004-08-16 00:00 ·  中国 河北 保定 联通
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It is best to boot the system with an ERD Commander bootable disc and then directly modify the administrator password. If you delete the sam, does it mean that all users are deleted?
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Floor 8 Posted 2004-08-17 00:00 ·  中国 福建 厦门 电信
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The following is the statement made by Climbing on 2004-8-16 21:58:36:

It is best to boot the system with the ERD Commander boot CD, and then directly modify the administrator password.
If you delete the sam, does it mean that all users are deleted?

Yes, it means deleting all users....
Floor 9 Posted 2004-08-17 00:00 ·  中国 广东 广州 白云区 电信
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Just delete all users' names and passwords, but keep the users' profiles (start menu shortcuts, favorites, etc.), right?
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Floor 10 Posted 2004-08-17 00:00 ·  中国 福建 厦门 电信
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Here is the speech of JonePeng on 2004-8-17 17:41:51:
Just delete the names and passwords of all users, but keep the user's data (shortcuts in the start menu, favorites, etc.), right?


That's right! You just need to find it in the corresponding folder.
Floor 11 Posted 2004-12-21 00:00 ·  中国 江苏 扬州 仪征市 电信
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Thanks everyone. I have found these two files under WINXP, but it prompts that they are used by other programs and cannot be opened. Depressed. I don't want to delete the password. May I ask if I can use some software under DOS to open them so as to view their contents? Thanks!
Floor 12 Posted 2005-12-22 21:58 ·  中国 湖北 黄石 电信
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Deleting the SAM will cause most XP to fail to boot
Floor 13 Posted 2005-12-22 22:26 ·  中国 湖北 武汉 联通
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If NTFS and also EFS...
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