Note: This post may be wrong. I’m getting a lot of complaints that this doesn’t work. See the Microsoft page on how to do this here
Disabling startup login prompt for password
- Click Start and Run
- Type “Control Userpasswords2″ and press enter.
- Uncheck the box for “Users must enter a user name and password to use this computer.”
- Click Apply and Ok.
Please read the comments before following these steps – some comments have reported that this fix is causing a few issues.