Here is How to Turn off User Account Control

Although User Account Control is a safe and secure way to not to mess up your Windows Vista as of today Vista seems to be quite unstable as compared to Windows XP, but yes, sometimes it is very annoying to answer for bloody every system program that you want to modify or even run. So here's the way as to How to turn off the User Account Control in Windows Vista.

Go to Control Panel > User Accounts and click the link for “Turn User Account Control on or off” given on the left hand side.

Uncheck the box and restart your computer to save the changes.
That’s it!