Lost User Passwords. (Windows XP)

   If you have lost or forgetten a user account password in
   Win XP, simply log in as the computer administrator,
   and go to control panel, user accounts. Here you will be
   able to reset the password for any of the systems user
   accounts.

   Lost Administrator Password. (Windows XP)

   Slightly more work needed if you lose or forget the
   Windows XP administrator password.

   First reboot Windows XP in safe mode by re-starting
   the computer and pressing F8 repeated as the computer
   starts up. Then (in safe mode) click Start and then click Run.
   In the open box type "control userpasswords2"
   without the quotes - I have just used quotes to differentiate
   what you have to type.

   You will now have access to all the user accounts, including
   the administrators account and will be able to reset the lost
   password.

   Just click the administrators user account, and then click
   Reset Password.

   You will need to add a new password in the New password
   and the Confirm new password boxes, and confirm by clicking OK.

   All done, you have recovered the lost adminitrators password!