To quickly disable the UAC option on Windows Vista operating system on a computer first go to the control panel on your computer. Then go to user accounts, next click on turn user account on or off and you will be prompted to type in your password. Type in your password and press enter. Then uncheck the box that says use UAC to help protect your computer. Then click the okay button to finish. You can now exit out of the control panel and go back to your desktop. The UAC on your computer should now be completely disable and not working on your computer.