Microsoft Anti Virus Last in test – Windows 7
In recent tests by AV Test, the German lab that is pretty much the de facto standard in malware testing, Microsoft came in a distant last place.
This was not a test of commercial antivirus products you find in stores. It was a test of enterprise endpoint security products used in businesses.
Overall, 11 products were tested, and six of them – Bitdefender, F-Secure, Trend Micro, Symantec, and two offerings from Kaspersky – achieved a 100% detection rate. The rest did no worse than 95%, with one exception: Microsoft Security Essentials detected only 73% on the real-world testing and 87% of the malware on the real-time test.
Microsoft has three products: Windows Defender, which comes with Windows 7 and 8; Microsoft Security Essentials (MSE), which you can download; and the Malicious Software Removal Tool (MSRT), which is focused on specific and common forms of malware. Defender and MSE have never had a good reputation or track record for malware detection because they use the same malware definitions.
Defender was just anti-spyware until Windows 8, when it was expanded to offer antivirus protection as well. MSRT is only updated once per month, during Patch Tuesday, which is going away with the release of Windows 10.
For whatever reason, Microsoft just has not been able to get its antimalware products going. These tests are nothing new. Defender/MSE have always brought up the rear in AV tests. The company has objected to the testing methodology of AV Test, but you would too if you came in so far behind the rest of the pack.