Log in to your administrator account first. If it is an XP system, you can operate according to the following steps: Start-Run-Enter Rundl32netplwiz.dll, and the user Rundll enters the car, and then you can operate. Then, remove the check mark before "To use this computer, users must enter a user name and password", and then apply OK. And change the way users log in or log out in Computer Start-Control Panel-User Accounts.