Since most of you guys advised me to use Avast 4.6 over AVG....(which i did and i am happy about that) i have another question: What do the experts here use as second AV tool?? I mean lets be honest...NO AV tool has a 100% coverage. right? Another (free) installed AV software....or at certain times just an AV check up with a website (trend Micro,panda...etc..etc..)Right now i am impressed with Antivir (free version)...it's fast....and doesn't use too much memory. An disadvantage however is the fact that sometimes i have troubles updating Antivir....:-( Untill recently I used F-prot for windows as a backup AV...but I must say i am kindda turned down by the interface and the fact that in some magazines F-prot didn't got away very well in an comparison AV test. The update size of Antivir however seems pretty large:-( So is Bitdefender 8.0 free... Any feedback from you experts here?? What kind of AV tool do YOU use as a backup? TIA. Paradutch.