avast! Free Antivirus

Publisher's Review:
The World's Most Popular Antivirus Software 

avast! Free Antivirus

Our avast! Free Antivirus is the minimum protection you should have — it provides great protection against viruses and spyware. But for even better protection against the latest and constantly changing internet threats, upgrade to avast! Internet Security, our best protection. 

Main Features:

• (IMPROVED) Antivirus and anti-spyware engine 
• Antivirus and anti-spyware engine 
• avast! Community IQ
• (NEW) Code emulator 
• (NEW) Heuristics engine 
• Boot-time scanner 
• avast! Intelligent Scanner
• Smart virus definition updates
• Multi-threaded scanning optimization