I purchased a tablet pc running Windows XP Embedded. The tablet was used in a medical clinic on a domain. For illustrative purposes, say the computer name was "COMPLEXCOMPUTERNAME".
There was an administrator account, so I changed the password on account "COMPLEXCOMPUTERNAME\Administrator" to a blank password. I logged out and logged in successfully with the blank administrator password when the log-in dialog said "Log in to COMPLEXCOMPUTERNAME (this computer)".
Next I renamed the computer from COMPLEXCOMPUTERNAME to SIMPLECOMPUTERNAME, which required a reboot. I did so, and I can't log in anymore.
The log in screen still just says "Log in to COMPLEXCOMPUTERNAME (this computer)", but the account "COMPLEXCOMPUTERNAME\Administrator" no longer works. I suspect that this is because the computer has been renamed to SIMPLECOMPUTERNAME and it can no longer find the account.
The "Log in to" dropdown can't be typed in, so I can't change the computer name Windows is trying to log into. I fear that I'm stuck. Is there a way I can get Windows to log into the computer name that I chose?