What anti-virus software is the best value for money?

super asked: What anti-virus software is the best value for money?
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free virus scans?

webmaster asked: i went to http://anti-virus-software-review.toptenreviews.com/ and found that (bitdefender/ kaspersky) i has a excellent reviews,so are they the best or what, is their any other free virus scans out their that are best.

In 2009 had Webroot AntiVirus become better than NOD32?

Mohhamed F asked: I saw a website that gave ratings on the top 17 antivirsues that BitDefender was at top, KasperSky second, and Webroot at third with NOD32 fourth. Is this right?
The website was:- http://anti-virus-software-review.toptenreviews.com/

How do I run my anti-virus software in safe mode?

dimplefaceddoll2002 asked: I downloaded a free trial version of kaspersky anti-virus software. After I downloaded it, it automatically restart my computer. Now, all I see is my desktop background. NO ICONS and NO START button. How can I run the software? Is my computer fully started up?
I know how to get into safe mode, but [...]