Avast Free Antivirus 5: A Solid All-Around Contender

Avast Free Antivirus 5: A Solid All-Around Contender
Avast Free Antivirus is a well-rounded free antivirus package: It does a solid job at blocking malware, has a pleasant interface, and scans files quickly.
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Avast Pro Antivirus 5
Avast Pro Antivirus 5 has a slick interface, but its middling malware detection performance prevents it from achieving a higher score.
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Avira AntiVir Personal: Great Malware Protection
Avira AntiVir Personal does an great job at blocking and detecting malware, but its interface needs a makeover.
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