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If you're using User Access Control you'll find opening the main CCleaner interface will require an additional permission. I know It's Windows Vista's way of protecting my system from programs which access critical system locations. But I have all of my startup programs doesn't require UAC interaction except CCleaner. This make CCleaner with Vista annoying. How to set CCleaner run without UAC permission?

no i mean CCleaner will clean your pc when u shutdown ur pc, i mean: SHUTDOWN > AUTO CLEANER i don't mean: CCleaner > AUTO SHUTDOWN then is there any way CCleaner will auto clean after i close browser? Thanks DennisD

Automatic cleaning Suggestion. We can schedule background cleaning at each startup or shutdown, or when the Browser is closed. So, not just when windows startup only.