Install 2 antivirus..? Hi every one.... what u guys think about ..if we install 2 antivirus for windows 7 RC 32 bit or 64 bit? 1.avast. 2.avira. it`s work very well but need prossecor intel core 2 dou 2.0 Ghz or higher for better and fast performance memory of RAM about 1Gb or 2 Gb for...