Microsoft's Free Antivirus Software Actually Works!

"AV-Test.org ran it through a bevy of tests and found the freebie performed admirably. In its first outing, it nabbed all 3,700 viruses, Trojans, and worms that testers threw at it. Then they loosed it on a computer already infected with 545,344 malware samples, and it scrubbed 98.4% of them. It’s relatively efficient, too."