I was wondering if there was a way to disable the ability to create accounts in Windows 7. Somehow my sister's kid is creating new accounts to get around not knowing her password. Obviously she doesn't want him using her PC...because he's ruined previous PC's by clicking on stupid stuff. From the Windows 7 login screen there doesn't appear to be anyway to create an account, so somehow he's figuring out her password and creating accounts. Is there a way to prevent people from creating new accounts by either disabling it or requiring a password?