I need the default registry values for the FOLLOWING files.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\DefaultPassword
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\DefaultUserName
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ForceAutoLogon

Here's how that stuff got changed:
I had a program that let me automatically login to my username, but I uninstalled it. But the registry wasn't changed back, so I keep getting an annoying popup saying that the password cannot be found, but I can click OK and the REGULAR login screen comes up and WORKS perfectly. I've tried System Restore, but that doesn't work. WHAT DO I DO?!?!?!This is on Windows XP SP2.Is this your system ?
How did you lose your Admin password?
What program did you RUN to automatilly logon ?

We cannot assist with password recovery on a soft excuse such as a registry entry....
But nice try.I USED StyleXP, which I now regret. This is my system, but I lost the admin password because it wouldn't let me change back.Boot into safe mode by tapping F8 rapidly as the machine is powering up and before you see the Windows logo...
Try changing the Admin password there.
If it won't allow you from there i'm afraid we can assist no further.