I did a bad stupid thing. I was trying to troubleshoot a home networking problem and I changed my laptop's domain from my company's domain to "HOME". I noticed that the workgroup had changed to the default, "WORKGROUP".
I logged off, thinking that I could log back in on the administrator account and undo my mistake. But, now I cannot get any username/password combination to work. In the login prompt after booting, I see my username, but when I type in my password, or my previous password, the system kicks me saying,
"The system could not log you on. Make sure your User name and domain are correct, then type your password again....."
Ironically, the domain window no longer appears so I can't change the domain.
I am sure that there is information missing here but I don't know what is important. But, in any case, any help would be really, really appreciated.