The reputable German consumers mag (Stiftung Waren)test, in its latest issue 4/09, publishes the results of extensive tests of the 3 leading free AV utilities: Alwil Avast Home Edition v.4.8, AVG Free Edition v.8.0 and Avira AntiVir Personal v.8.2. Here are the somewhat unexpected results: Best came out Avast with good detection and use of resources. Second was AntiVir with fair detection and very good use of resources. Last came AVG with fairly poor detection and good use of resources. For completeness, it should be stated that since the start of the tests, AntiVir has brought out a new version 9, claimed improved. Similarly, there is a new AVG 8.5 version. As a matter of interest, among the 13 premium Security Suits also tested, which include AV plus Firewall, best came out G Data Internet Security 2009, v.19.1 with very good detection, very good firewall but fairly heavy demand on resources. Those with older systems would do better with the runner up BitDefender Internet Security 2009 v12.0 which has good detection, very good firewall and very low demand on resources.