Windos XP Pro notebook that was previously on a domain. I changed to a workgroup and after rebooting, can not login. Gets to the "Press CTL-ALT-DEL to begin" and then get User name and Password prompt. When I fill in name and password, get "LOGON MESSAGE: The system could not log you on. Make sure your User name and domain are correct". No third box below with any domain selection. Even if I select OPTIONS nothing appears. I think it is confused thinking I am still on the old company domain.
Is there a back door where I can login. I don;t know the administrator password either.