Locking out those unwanted users
Keep people from accessing Windows, even as the default user.
NOTE: If you do not have an actual network domain do not attempt this!
1. Open RegEdit 2. Go to HKEY_LOCAL_MACHINE\Network\Logon 3. Create a dword value “MustBeValidated” 4. Set the value to 1
Note: This forced logon can be bypassed while in Safe Mode