Avira Free Antivirus is a popular free antivirus program which analyzes the files downloaded from the network successfully and it also scans e-mail.
SpyBot Search & Destroy cleans your computer from malicious software, spyware and other threats. Allows you to get rid of programs like Trojans and viruses.
Avast Free is one of the most popular free antivirus programs. The application is characterized by a very high speed of operation and surprising efficiency.
Avast Premier AntiVirus is a complex computer security system. This package consists of the antivirus software and anti-spyware modules.