YMMV, but I had to test 14 major brands of anti-virus for my company and in my opinion Eset's NOD32 performed the best, with Kaspersky being my second pick. My methodology wasn't very scientific, but it covered what's important to us like memory footprint, scanning time, thoroughness, ease of management for an enterprise. Of course, we use clamav on our mail server which is just incredible for that purpose.
There are many antivurus software and anti keyloger. But what's is the best??
Norton antivus? or
Kaspersky anti virus??
i am currently using AVG anti virus. norton is good but i suggest u use the norton 2003 because its not heavy to the memory of ur pc, just keep updating the virus definition for it to detect even new virus.. but if you want to more lighter for your memory [RAM and HD], Nod32 is what u should use.. just make sure that its virus definition is updated.. u cn download it tru the internet or its much beter if ur pc is connected to the internet at all times..
for most people they trust norton anti virus.. its the best one in the market..