Once you join a server to a domain, Windows will automatically delete the AutoAdminLogon value from the HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon registry key. This causes the userpasswords2 control to hide the “Users must enter a user name and password to use this computer” check box shown above.
Here’s how to get the missing checkbox back and configure Autologon:
- Open a CMD prompt and enter the following (all on one line):
- Click Start, Run and enter control userpasswords2
- Clear the checkbox for Users must enter a user name and password to use this computer and click OK
- Enter the user name and password that will be used for Autologon and click OK