When MS released Vista, there were some complaints about UAC asking for confirmation to do this, that and the other. So MS made a compromise in Windows 7 and allow customers to choose what level of prompting they want. Know that turning completely off UAC also means turning off Protected Mode in Internet Explorer, and not too many people realize that a major piece of protection is now turned off. UAC pops up mostly during the setup phase, once you have finished setting up your computer, you will rarely encounter it.
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