Wednesday, December 10, 2014
How effective are Microsoft Malicious Software Tool and Windows Defender? Why do they take so long to update?
I’ve noticed during Microsoft automatic updates on both Windows 7 and 8.1 that the Microsoft Malicious Software Removal Tool takes a very long time to install, typically about ten minutes, whereas most other updates are quick. Windows Defender can also take time.
The WMRT is not a substitute for anti-virus software; it is a “second opinion” that can remove malware only after the fact, and it’s only updated once a month. Here’s a story about it on Computerworld by Michael Horowitz from 2009, link.
There is also a module called Windows Defender, which Microsoft explains here.