The Administrator Account
It may come as a surprise that Windows XP provides one more, very special account: an emergency, backup account with full administrator powers. Even if you delete all of your other accounts, this one will still remain, if nothing else so that you have some way to get into your machine. It’s an Administrator account called Administrator, and it’s ordinarily hidden.
In fact, there’s only one time you’ll see it: in times of troubleshooting, when you start up your PC in Safe Mode (Section 15.9). It’s the ideal account to use in those situations. Not only does it come with no password assigned, but it’s also not limited in any way. It gives you free powers over every file, which is just what you may need to troubleshoot your computer.