What Anti-Virus do you use in Windows Security Posted March 28, 2009 NONE, I don't use AV anymore. I used an AV for 10 years and NOT ONCE did it ever "protect" me from anything except a few false positives. It took 30 seconds of startup time on every bootup, and several minutes per system scan (not to mention CPU/RAM usage), so i killed it. :-D I use the hpHosts file, my yahoo mail has built-in Norton AV, i applied the SpywareBlaster protection, and i use the Windows firewall. I don't visit shady websites or install unknown programs so i don't see where the risk is. If i get paranoid i can do a free online AV scan every few months. Running realtime AV when all you do is routine email/research/chat is a bit like wearing a bulletproof vest to buy groceries and go to the library. Just my opinion-- an opinion that is usually ridiculed. It is what it is.