We had Windows XP Home with 5 accounts with one of them as the administrator account. My son changed his limited account to an administrator account with a password and now we can't change it back, change the password or delete the password. All we can do is change his picture. So we have two administrator accounts and when you are in these accounts the computer takes forever to load. We can't change my son's account from the original administrator account either. Please help!!! Thank you.