First, delete the SAM file, clear the administrator account password
There is a SAM file (ie the account password database file) in the Winnt / System32 / Config directory where Windows 2000 is located, which saves all usernames and passwords in Windows 2000. When you log in, the system will use the username and password you typed, and the encrypted data in the SAM file is paired. If the two are fully compliant, it will enter the system smoothly, otherwise it will not be logged in, so we can use the delete SAM The method of the file is to restore the administrator password.
After deleting SAM files, restart, at this time, the administrator administrator account has no password. At this time, you can log in to the system with the Administrator account, do not enter any password, enter the system, then reset your administrator account password.
Second, find a password from the SAM file
The tools required here are LC4, running LC4, open and create a task, then click "Import → Import from Sam File", open the SAM file to be cracked, and LC4 will automatically analyze this file and display the file. User name; then click "Session → Begin Aud" to start cracking the password. If the password is not very complicated, it will get the result in a short period of time.
However, if the password is more complicated, it takes a long time. At this time, we need to use the following method.
Third, set the new password with the password reset
After logging in to Windows XP without using the Welcome Screen, press the "Ctrl Alt Del" key button, "Windows Security" window appears, click the "Change Password" button in the option to change the password window. . In this window, the current user's password backup is backed up, click the "Backup" button in the lower left corner, activate "Forgot Password Wizard", and follow the prompt to create a password reset.
If you enter the wrong password in Windows XP, you will pop up the Login Failure window. If you can't think of your password, you can click the "Reset" button, start the password reset forward, pass The password re-add plate that has just created, reset the password, log in to Windows XP.
Fourth, use software to change your password
Windows Key 5.0 and Windows XP / 2000 / NT KEY These two software can automatically modify the Administrator password to 12345, log in with this account after restarting the system, and then re-modify the administrator password in the Control Panel user.
Software Name: Windows Key 5.0
How to use: 3 files will be generated after running: txtsetup.oem, winkey.sys and winkey.inf, copy them into a floppy disk, make a Windows Key disk. Then use the Windows XP to install the disc to start the computer, press the F6 key during the startup process to install a third-party driver during the startup process. At this point, the Windows Key floppy will automatically jump to the WindowsKey interface, then it will force the administrator's password to "12345".
Software Name: Windows XP / 2000 / NT Key
How to use: Use it to make a driver floppy disk; then start the computer with the installation CD, press "S" during the startup process, insert the drive floppy disk, the password of the system administrator account Administrator will be changed to 12345.
