Delete Sam file, clear Administrator account password _ password recovery strategy

Delete Sam file, clear Administrator account password
　
Applicable system: Windows 2000
Windows 2000 has a SAM file (the account password database file) under the Winnt\system32\config, which holds all the user names and passwords in Windows 2000. When you log in, the system will give you the user name and password you typed. Proofread the encrypted data in the SAM file, and if the two are fully compliant, you will be able to enter the system smoothly, otherwise you will be unable to log in, so we can recover the administrator password using the method of removing the Sam file.
With Windows PE, Bart PE, Ntfsdos, and so on to start, delete the Sam file reboot after the administrator account has no password, then you can use Administrator account login system, do not enter any password, Enter the system and reset your admin account password.
Small tip:
This method cannot be used on Windows xp/2003 and can cause a system crash if you delete the Sam file.
The Security Account Manager (security Accountmanager,sam) mechanism is used in the windowsnt/2000/xp of the user account, security Account Manager manages the account through the security identity, the security identity is created at the same time when the account is created, Once the account is deleted, the security ID is also deleted. The security identity is unique, and even the same user name is completely different from the security identity that is obtained each time it is created. Therefore, once an account has been deleted, its security identity no longer exists, that is, the use of the same user name to rebuild the account, will also be given a different security identity, will not retain the original permissions.
The specific performance of the security Account Manager is the%systemroot%\system32\config\sam file. The Sam file is a WINDOWSNT/2000/XP user account database, and all user login names and passwords are stored in this file.
In addition, in WINDOWS XP, the \windows\repair\sam file is copied to the \windows\system32\config\ directory to overwrite the original file (if you do not trust you can back up the original Sam file), The password for the administrator account is empty.
If possible, it is recommended that other methods be used.
　
Advantages: Easy to use
Disadvantage: Damage to security identity, not used in Windows XP, Windows 2003, if EFS encryption, encryption damage, data loss.
　
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