Enable Administrator Account in Vista
The administrator account is disabled and Hidden by defualt in Vista. Even if your account is an administrator account you will still get UAC warnings and Warnings like this command requires elevation.
To Enable the Administrator Account Right click on My Computer, Click Manage, Go to local Users and Groups, and uncheck the account is disabled box. Make sure to set a password though.
Or if you prefer the Command Line enter Net user administrator /active:yes

