>You mean to use DEFENDER?
If you have kids under 20 at home, other products might be a little better. You can check some comparative reviews e.g.
http://www.trustedreviews.com/best-free-antivirus_round-upThe most dangerous attack vector these days is malicious web content. It's more important to run, at a minimum, one or more ad blockers. Even better, shut down all active content by default, using something like NoScript on FireFox.
That will even stop most of the zero-days, which no AV product can protect against.
Regards. Al
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