Think you should change the antivirus. I did test a lot of choices and can tell u if u need a light AV is no better solution than NOD32. Not saying is best enough. Kaspersky or recently Norton are far better. For offline clean u can use DR WEB. Or have a look at www.softputeria.com
They do recommend clean good software. And easy to read also. CCleaner I found it also there. Impressive solution, thank you Piriform. Mostly is incredible this is a free software.
YO!