What anti-virus program do you use in your PC? How effective it is?

right now im using AVG antivirus and its doing a pretty good job defending my system. still haven't been struck by virus for about 2 years now. and if there was a virus detected it was removed immediately

i am using avg , its best, updates daily ,has a wide database , it has an inbuilt firewall and moreover it uses very less cpu and so doesn't slow down your computer .

kaspersky is the king in anti-virus. get it in 9down.com for free. You can also get cool software there.

I am using BitDefender as my antivirus tool. Its version is 10. Its features are too good and it works perfect. Its even lighter. Its updates are hourly and you can change it as per yours need. Right now its service is to good for my PC. Thanks. Have a nice day.

i use avast! home edition. it's totally free, has on-access protection, and updates not just the virus database but the features as well. i started with just a basic anti-virus installation, registered for updates (free), and now the install on my system has adware detection and firewall features. i'm totally satisfied with avast!

hi julia I'm using Norton anti-virus since day one. I don't know if its the best in the market, but i haven't encounter any problem since day one. Touchwood!