Yes, I have tried the "ctrl-alt-del" during regular boot and Safe Mode. The login appears, but no user/administrator names or passwords work.

Please advise.

I can not get past the Welcome screen. All I can do is the "crtl-alt-del" routine and turn off the computer.

Your thoughts?

I had a "user name" that would appear at the Welcome screen prior to the problem developing.

Please advise.

When I power up my HP Pavilion ze5300 laptop, I get the Welcome Screen "without" any user names to select. I "have not" recently loaded any new software from the internet or otherwise. I am running...