In spite of a recent effort to improve the performance and detection rates in Windows Defender, Microsoft’s anti-malware tool is still not very good at its job. According to the latest tests, it’s downright lousy.
The latest round of tests performed by German institute AV-TEST, one of the most respected and regarded malware testing shops, show that Microsoft Security Essentials and Windows Malicious Software Removal Tool fared the poorest in removing an existing infection.