Friends i wonder has anyone used CCleaner because i have never used it and truly saying that i am listening it first time don’t know that what all i can do with it? so please tell me something about it and Where should I download it off of for free without getting a virus. Is it better than formatting your harddrvie and is the piriform website safe enough to download CCleaner off of? I even heard there are some minor glitches so can anyone tell me what are they too? please help?