method One:
In the case of computer boot, open the computer Start menu "Run", enter "cmd", and then click "OK".
Once identified, the "cmd.exe" (This is the computer command input area and the C + + language program running the program) appears.
In the "cmd.exe" input "NET users Administrator" (as shown in the picture), note that after entering the administrator, you will have to play two more spaces Oh! (Note: If the administrator who set the password is not a manager, change the administrator to the name of the admin with the password set!)
And then press ENTER, just fine.
The above method must be in the case of computer open to work together Oh! The next method can be used without input power-on password can be cracked oh, but to ensure that the power-on password is not administrator
Method Two
When the computer starts, the F8 key is hit, and a list appears. Select "Safe Mode" in the list and press ENTER. After the boot, there will be two administrators, select the administrator, press ENTER to enter (because the administrator has set the password is not administrators, so the password of the administrator is null by default). After entering, click on the Control Panel, select the user account, find the administrator set the password, click the clear password can be!