Hide yourself

Once you've created a user account, password-protect it to keep other users from
viewing your files, Favorites, and cookies. Why? You may not want your child to see
the note that you're sending to his or her teacher, or you may be planning
someone's surprise party. (Note: Anyone with an Administrator account can still see
them.)
Worried about remembering your password? Create a hint to help you when you
initially create it by following the prompts during setup. XP stores the password hints
in the Registry at Hkey_local_machine\Software\Microsoft\Windows\Current
Version\Hints.
What if the hint doesn't help? Any user or Administrator can create a password reset
disk, which you can use to log on and create a new password. Go to Control Panel >
User Accounts and select "Prevent a forgotten password" in the Related Tasks box on
the left. Follow the wizard's instructions. After creating the disk, find a safe place for
it. Don't forget the password or where you put the disk. Someone else could use it to
change your password without you knowing it.