avast! Free Antivirus

avast! Free Antivirus is perfect for people who send e-mails and surf popular websites. But if you store sensitive data on your computer, shop or bank on-line, we recommend the comprehensive protection in avast! Internet Security.

Features
Antivirus and anti-spyware engine
avast! Intelligent Scanner
Silent/Gaming Mode
Behavior Shield
Real time anti-rootkit protection
Smart virus updates
avast! Community IQ
Behavioral Honeypots
Green computing
avast! iTrack
File System / Mail Shield
Web Shield
IM / P2P Shield
Network Shield

avast! Free Antivirus