Download avast! 4 Professional

avast! 4 Professional Edition is a collection of award winning, high-end technologies that work in perfect synergy, having one common goal: to protect your system and valuable data against computer viruses. It represents a best-in-class solution for any Windows-based workstation. This page demonstrates its most important features and provides links to further resources.

Features overview
Antivirus kernel

Automatic updates
Simple User Interface

PUSH updates
Enhanced User Interface

Virus Chest
Resident protection