Which is the most powerful antivirus software for Windows XP, Vista and 7? The answer varies from if you were to ask different people, everyone has their own opinion on which is the best antivirus firewall and spyware software for their system. In a situation like this, it is best to ask the experts – AV Comparative. If you have no idea who these guys are, they are the leaders in antivirus comparison.
In the following test, 15+ antiviruses was put to the test, they are:
- avast! Free 5.0
- AVG Anti-Virus 9.0
- AVIRA AntiVir Premium 9
- BitDefender Antivirus 2010
- eScan Anti-Virus 10
- ESET NOD32 Anti-Virus 4.0
- F-Secure Anti-Virus 2010
- G DATA AntiVirus 2010
- Kaspersky Anti-Virus 2010
- Kingsoft Antivirus 2009+
- McAfee VirusScan Plus 2010
- Microsoft Security Essentials 1.0
- Norman Antivirus & Anti-Spyware 7.10
- Sophos Anti-Virus 9.0
- Symantec Norton Anti-Virus 2010
- TrustPort Antivirus 2010
Image Source: AV-Comparative.org
As shown in the screenshot above, Avira appears to be the best followed by G Data (dual antivirus engine) and then Kaspersky. Do note that being at the top of the chart means there are more false positive as well, meaning to say ‘some’ viruses caught by these antivirus might not be a virus, this will cause some problem for system admin as they run back and forth explaining and monitoring the situation whenever a false positive occurs. Visit AV Comparative and read more about the ‘Retrospective/Proactive Test’ released on November 2009.
p.s. I was using Norton Antivirus on computer 1 and AVG on computer 2, while transfer my entire backup files, both failed to detect a ‘keygen’ as Trojan. When I purchased my new Sony Vaio FW55GF, it comes installed with Avira Free, it caught the Trojan. Not sure if it a false positive.