What is the best antivirus that can be downloaded from internet free of cost?

AVG is my personal favorite

What is the best antivirus that can be downloaded from internet free of cost?hijackthis

http://www.avast.com/eng/download-avast-...

What is the best antivirus that can be downloaded from internet free of cost?malware

Go to http://www.infowebcentral.com/secure/ and at the bottom click on "Free Anti-Virus Software".
go to http://www.avast.com/ and download
Go for AVG free home edition...n update it on regular basis....its pretty good...n moreover if u used panda/norton/aol/anitirus/qh earlier...u will see the difference....AVG will never slow ur system...the process is pretty well organized.....

I can tell u frm my exp....in 2004/my final yr of engineerin we were threatened by Parite...no antivirus of tht thime were unable to remove this virus........thn we found AVG....try it n njoy it.....
AVG and AVAST are the two mostly recommended; they are both free. Avast requires yearly registration; AVG does not. Updates are good for both, but Avast has fewer problems. The AOL antivirus is good but acts like a virus itself and prevents legitimate downloads and installation of some of your programs.

And good luck trying to get rid of that AOL program. At least Norton has a free tool at Symantec to get rid of Norton; it would be helpful if AOL provided a similar tool. My personal favorite is Avast, of the free anti-virus programs. Nothing is 100% though, and switching to Mozilla Firefox or the latest Opera browsers eliminate spyware and malware pretty much. PC World, Kim Commando, Leo Laporte all give good tips.
notrin antivirus is my favorite
Avast Anti-Virus.....