First, delete the SAM file, clear the Administrator account password Windows 2000 where the Winnt\\System32\\Config directory has a SAM file (ie account password database file), it saves all the user names and passwords in Windows 2000. When you log in, the system will check the username and password you typed with the encrypted data in the SAM file. If the two match, it will enter the system smoothly, otherwise you will not be able to log in, so we can use delete SAM. File method to recover administrator password. After deleting the SAM file, restart it. At this time, the administrator administrator account has no password. At this time, you can log in to the system with the Administrator account. You do not need to enter any password. After entering the system, you can reset your administrator account password. Second, find the password from the SAM file
The tool needed here is LC4, run LC4, open and create a new task, and then click "IMPORT→Import from SAM file" to open the SAM file to be cracked. At this time, LC4 This file will be automatically analyzed and the username in the file will be displayed; then click on “Session→Begin Audit” to start cracking the password. If the password is not very complicated, the result will be obtained in a short time. However, if the password is more complicated, it will take a long time, then we need to use the following method. Third, use the password to reset the new password
After logging in to Windows XP without using the "Welcome Screen" login method, press the "Ctrl + Alt + Del" key combination, the "Windows Security" window appears. Click the "Change Password" button in the options and the Change Password window appears (Figure 1). In this window, backup the current user's password, click the "Backup" button in the lower left corner, activate the "Forgot Password Wizard", and follow the prompts to create a password reset disk. If you enter the wrong password in the Windows XP login window, the "Login Failure" window will pop up (Figure 2). If you really can't remember what your password is, you can click the "Reset" button to start the password. Set up a wizard, reset the password through the password reset disk you just created, and log in to Windows XP. Fourth, use the software to change the password
Windows Key 5.0 and Windows XP/2000/NT Key these two software can automatically change the Administrator password to 12345, restart the system, log in with this account, and then in the "Control Panel" user, Then re-edit the administrator password. Software Name: Windows Key 5.0 How to use: After running, it will generate 3 files: txtsetup.oem, winkey.sys and winkey.inf, copy them to a floppy disk and make a Windows Key disk. Then use the Windows XP installation CD to start the computer. Press F6 during the boot process to let the system install the third-party driver. At this point, put the Windows Key floppy disk will automatically jump to the WindowsKey interface, then it will force the Administrator password to "12345". Software name: Windows XP/2000/NT Key How to use: Use it to make a driver floppy disk; then use the installation CD to start the computer, press "S" during the boot process, insert the driver floppy disk, the password of the system administrator account administrator will Was changed to 12345.