Free Anti-Virus

Panda Cloud AntiVirus
(Best Performing Free AntiVirus Right Now)

Avira AntiVir
(Use “Custom” option and choose
“Fraudulent Software” in the “Threat Categories” list)

AVG Free

 

Free Malware Cleanup Tools

SuperAntiSpyware

Malwarebytes Anti-malware

 

Free System Cleanup Tools

CCleaner
 

Our thoughts on free anti-virus:  Most paid products include many tools that are only fluff.  They, usually, are not needed and hurt system performance.  They all include a firewall but Windows has one built in.  In recent lab testing, Avira was ranked #2, only behind GData (a paid product).  Take a look at this report to see how your favorite product faired.