New computer with XP Pro which I set up with my user ID with Administrator privilages. When I try to switch to Amin user......start/logoff ...then select "switch user"....I get a screen with User and Guest only....Administrator is NOT an option.
Ctl Panel/User options shows an Administrator ID already exists.
That's a hidden account that will be revealed when you press Ctrl+Alt+Del twice while at the logon screen. Then type Administrator for the account name and type any password you have assigned. If no password is assigned, just leave that blank and press enter.