>I do not advise that as it makes your PC much more vulnerable to malware. Also, you run the risk of software not running properly on client computers because they have UAC on.

Not sure what is the advise. Are you saying I should not install anything on drive C:?

>I thought of another reason you could be getting so many UAC prompts. Open Control Panel and select System and Security. I'll bet the slider is all the way at the top. Move it down one notch.

There is no System and Security option in there.