Every two months, AV-Test takes a look at popular antivirus software and security suites and tests them in several ways. In their latest test which was performed on Windows 7 during September and October, Microsoft Security Essentials didn’t pass the test to achieve certification. Although that may not sound that impressive, Microsoft’s program was the only one which didn’t receive AV-Test’s certificate. For comparison, the other free antivirus software, including Avast, AVG and Panda Cloud did.
I remember about a year ago, there was an article where Microsoft was one of the best. Either the playing field changes rapidly, or all these tests are bogus.