How to prevent someone from creating a new user account on XP?

Hi...just want to know how i can ensure that someone else can't make a new account on Windows XP when I am logged in as admin! thxHow to prevent someone from creating a new user account on XP?
Set a password on your account, and lock the computer when you're not using it.How to prevent someone from creating a new user account on XP?
dont let anyone login to an admin account. I assume you have a password setup
Change the account of him from adminstrator to limited user
its simple after he or she did this go to control panel click on users account and then when you see the account that have been created click on it then click delete account





thank you and goodbye