Top five 'FREE'anti-virus

software available to Windows Operating Systems:

1. AVG Free Antivirus-- Get it here http://free.avg.com/
   Easy Install and easy administration
2. ClamWin-- Get it here http://www.clamwin.com/
   No real time scanner which means you'll have to manually scan a potentially infected file. Pretty solid AV overall though.
3. Avast Antivirus Protection-- Get it here http://www.avast.com/eng/avast_4_home.html
   Benefit of having anti-spyware and anti-rootkit built into this free edition
4. Avira Free Antivirus-- Get it here http://www.free-av.com/
5. PC Tools Antivirus-- Get it here http://www.pctools.com/free-antivirus/

Free Antivirus but currently in Beta:

Panda Cloud Antivirus--Get it here http://www.cloudantivirus.com/
This AV seems to have a really nice interface and uses minimal memory and disk space. There are some user complaints about the large amount of scan time among other things...but it is still in beta.

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