I'm thinking of making the leap from free AV to paid. (I've been using Active Virus Shield for a couple of months and am currently using Antivir PE Classic.) I have a shortlist of AntiVir PE Premium or NOD32 which both seem to perform very well in independent tests (e.g AV Comparatives). Which of the two offer the best performance in areas that aren't directly tested (e.g adware/spyware)? Which company releases the least buggy software on upgraded versions and provides the best support if I have issues? Are there any other factors I ought to be considering? Thanks for your help.