XP solution:
1. restart the computer, press F8 immediately after the startup screen appears, and select "safe mode with command line ".
2. At the end of the running process, the system lists the system Super User "administrator" and the local user "*****" selection menus. Click "administrator ", enter the command line mode.
3. type the command "net user ***** 123456/add" and change the "***" user's password to "123456 ". To add a new user (for example, the user name is abcdef and the password is 123456), enter "net user abcdef 123456/add ", after adding the account, run the "net localgroup administrators abcdef/add" command to promote the user to the system management group "administrators" and grant it super permissions.
4. restart the computer and select "run in normal mode". Then, you can use the changed password "123456" to log on to the "*****" user.
Windows 7 solution:
1. First, put the Windows 7 installation disk into the optical drive, restart the computer, and set in CMOS to start with the optical drive.
2. When the installation interface appears, click "Repair your computer" and select "Command Prompt" in the dialog box that appears ).
3rd, after the System Command Prompt window is used, enter the *** mmc.exe *** command and press the Enter key. The system will call the console.
Then select "file"-"Add/delete management unit". A dialog box is displayed. In the dialog box, select "local users and groups" in the left-side window, and then click "add. At this time, the system will add "local users and groups" to "console node" and click "OK" to complete the Add process.
4. After adding the user, the system returns to the console operation interface, click "local users and groups" in the left-side window, and then click "user ", the system will list all current users in the right window. Right-click the logon user you want to crack and select "set password". In the "set password for account" dialog box that appears, click "continue ".
5. The system displays a window for setting a new password. In this case, the user does not need to enter the previous password in Windows 7, but can directly set a new password. After entering the new password, click OK. A dialog box is displayed, indicating that the password is set successfully.