Get Windows 7's features on your Vista or XP PC

So, while Vista pointlessly tells you that it was sparked by '{9DF523B0-A6C0-4EA9-B5F1-F465C3AC8Bc}', a click on the Norton 'Details' link reveals that this stands for TimeDate.cpl. Clear information about the cause of an alert makes it much easier to have informed opinions about what you should do next. You also gain access to a 'Don't ask me again' checkbox. Can't see any reason why changing the time should be a security issue? Check this box and you won't be bothered by prompts about it ever again.

If you hate UAC so much that you can't even bear this, then there's a second option: turn off the prompts altogether. Launch 'REGEDIT' and go to 'HKEY_LOCAL_MACHINE | SOFTWARE | Microsoft | Windows | CurrentVersion | Policies | System'. Double-click 'ConsentPromptBehaviorAdmin' in the right-hand pane, set its value to 0 (2 restores the default setting) and click 'OK'. UAC continues to run, so you'll still enjoy UAC-related benefits such as Internet Explorer's Protected Mode, but you won't see a single prompt window.