A test was done recently with all virus scanners including free and the ones that cost money. The test was to see which one was able to pick up and cure the most viruses.....lets just say that Avira got second place with picking up 98.7%. Believe it or not, but Norton Anti-virus got first place.
However, you have to pay to get Norton...and Avira is Free and Has been proven to be the best at detecting viruses out of all of the free virus scanners.
Here is a link for where you can download it.
Avira AntiVir Personal - Free Antivirus - Free software downloads and software reviews - CNET Download.com
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FYI: AVG got 8 place. AVAST didn't even place in the top 10!!![/size]
2009 anti-virus software detection placement (iNDEPENDENT TEST)
1.) Norton Internet Security 2009
2.) Avira AntiVir PersonalEdition
3.) McAfee VirusScan Plus
4.) Kaspersky Anti-Virus Personal
5.) Panda Antivirus Pro 2009
6.) BitDefender Antivirus Plus
7.) Eset Nod32
8.) AVG Anti-Malware
9.) G Data AntiVirusKit (AVK)
10.) F-PROT Antivirus