Can anyone tell me of a good but free antivirus?

im gonna format my computer because its full of so many viruses and i'd like to know what free antivirus i can download to protect it...does anyone know of a really good free antivirus? (by the way i've tried avast home edition and its good but id like something better if there is anything)

Can anyone tell me of a good but free antivirus?husqvarna

I have used AVG Anti Virus, Zone Alarm Firewall, Spy-bot Search and Destroy and Ad Aware both spyware killers for years. They are all free for personal use and I have had no trouble with Viruses Trojans etc. AVG does not slow the system down as much as some other products and Zone Alarm allows a lot of personal configuration unlike the Windows Firewall. They can all be downloaded from the following linkhttp://www.computeractive.co.uk/. On the home page select downloads and then the appropriate category.I also use Windows Defender from the Microsoft site. It is safe to use two anti-spy products but never use more than one A/V as it can cause conflicts. You should run A/V and anti spy weekly. Hope this helps

Can anyone tell me of a good but free antivirus?microsoft office

avast or AVG both can be found on www.download.com
try Ad-Aware 2007 and Spybot Search and Destroy. Both are free and I think can be found on download.com, if not you can find them easily on google. hopes this helps. Using both of these programs will really help greatly.
Spysweeper with antivirus
search for AVG free advisor. I worked with a few independent techs and they seem to love this software.
Use ad-adware 2007 free,Spybot search%26destroy,Superantispyware free and avg anti-virus free.All free programs.

YOu can download all these from download.com.Be sure to update them regurally.
Avira AntiVir

http://www.free-av.com/
AVG Anti virus and McAfee virus scan are supposed to help a lot.check out http://blog.360.yahoo.com/blog-sAFtLsc8e... for more details.
You can try ZoneAlarm, which can be downloaded from http://filehippo.com/download_zonealarm_...

It provides basic virus protection and best of all, it's FREE!
AVG is one of the best that I recomend. (http://free.grisoft.com/doc/download-fre... It is a very good antivirus protection program and it also update itself automatic. I used it for over 3 years without any problems or viruses.