Avira AntiVir Personal - Free Antivirus 9.0.0.407
Price : Free
Operating system : Windows Vista 64-bit, Windows Vista 32-bit, Windows 2000, Windows XP

Publisher's description :
Avira AntiVir Personal Free Antivirus is a comprehensive, easy to use antivirus program, designed to offer reliable free of charge virus protection to home-users only. Avira offers: Extensive Malware Recognition of viruses, Trojans, backdoor programs, worms; Automatic incremental updates of antivirus signatures, engine and entire software; Permanent virus protection, with Virus Guard real time monitoring; Install and configuration in just a couple of steps, setup to protect your PC in minutes; Virus protection against known and unknown threats, using an advanced heuristic system; Scheduler where you can set the scanner to make automatic virus scans or updates on your system; Forum and phone support; Knowledge Base with virus descriptions available on web site; Rootkit Detection and Removal; A modularized AV-search engine for improved scan performance.
What's new in this version :
Version 9 introduces a quick-removal button for eliminating viruses with a single click, enhanced anti-spyware and anti-adware engines, and support for low resolution netbook screens.