Microsoft Free Antivirus

I didn't pay much attention the other day when it was first announced, who
wants to test beta security? But, if you don't mind having to validate your
OS then it might be just fine. Here's an excerpt from an article:

How good is Microsoft's free antivirus software?
Ed Bott

(From Page 2):
How good is the coverage? Microsoft scored dismal test results in the
early days of OneCare, hitting a nadir in 2007, but its record has
improved dramatically since. A new study (May 2009) by the independent
AV-Comparatives group gave Microsoft OneCare (which shares the same
engine and signatures as MSE) its highest (Advanced+) rating. Only 3 of
the 16 products in the test earned that rating. Microsoft’s technology
scored second in the accuracy ratings, behind AVIRA but ahead of AVG,
Symantec, McAfee, and a dozen other products. And on the crucial
measure of delivering the fewest false positives, Microsoft stood far
ahead of the pack, delivering the fewest false positives of any program
tested.

In the most recent round of tests from the independent ICSA Labs,
Microsoft’s technology passed, while McAfee’s VirusScan family joined
several smaller competitors on the FAIL list.
The Full Article

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