What's the best free antivirus system out there?

I need the BEST free antivirus system you can get on the internet.

My Mcafee has low antivirus since I can't update it because my comp admin is out of the state.

What's the best free antivirus system out there?cafe racer

1. Avast

2. AVG Free

What's the best free antivirus system out there?free anti virus

NOD 32 antivirus system speaks for it's self,..... Proactive protection against Viruses, Spyware, Worms, Trojans, Rootkits, Adware and Phising...

Best Detection.. Fastest Performance, Mininmal Resource utilization.
Don't listen to the guy below me. Nod32 isn't free and catches less than these three free antiviruses.

Proof:

http://news.softpedia.com/news/Microsoft...

AVG, Avast, or Antivir. Antivir has the best overall detection of any of the free antiviruses, but does have a pop up screen during updates that some people find annoying. If not use AVG don't listen to people that say AVG sucks, cause it doesn't. It has approximately a 96% detection rate, same as Avast and it has a scheduled scan unlike Avast. If you want a slow running computer just download Kaspersky or Zone Alarm, they're worst than the viruses themselves. Also I would recommned getting a good antispyware like Spyware Doctor Starter Edition which is free, AVG antispyware which is free, and/or Adaware and you'll be fine.
Spybot ,spyware terminator,avast and bit defender are all good.
If Free then It has to be Avast! home edition.........
Avast! antivirus home edition, is free.

www.avast.com
Kaspersky Internet Security Or ZoneAlarm Internet Securitytry the free trial. F*** AVG Its Sucks dont listen to people on yahoo when they say Hey Use AVG but if you want free then its Avast
AVG.

http://www.download.com/AVG-Anti-Virus-F...
If its got to be free then use Avast Home Edition from www.avast.com I can say from experience its the best free solution