The top five are;
- Trend Micro
My personal preference out of these is Kaspersky (not just because i have an advertisement for them on my site) because they have consistently been a top performer in these tests and its easy to use. Although the initial set up can be a pain.
Of the free antivirus programs available in the full list, Avast performs well and its one I use myself. Need to know more? Click here to visit the AV Comparatives site