Can't log into Windows XP pro

[randg224 0]

Windows xp pro boots up fine but there are no user accounts displayed on the welcome screen so I can't log in. I had to administator accounts and two user accounts. For some reason both of the users was locked out so I cleared the event viewer log files. I changed the password for both users rebooted and now none of the user accounts show up including the administrator accounts which I didn't make any changes. Can someone out please help!!!!

 

[peterh 1]

Reboot in safe mode and login as Administrator and check user accounts again.

 

[theefool 0]

Another thing to try.

 

When you are at the logon screen, hit CTRL + ALT + DEL two times in a row. This will bring up the "old" Logon prompt. It will ask for your logon (login) name and password.