What antivirus would you recommend for me to use on my personal computer at home?

I used to run Linux, but nowadays, I have to use Windows 7 because of changes at work, therefore, I don't know what antivirus to use.

I don't want the antivirus to have a firewall included. I hate it. And, no silent mode anymore, please.

marked as duplicate by Judith, Izzy, RockPaperLizard, e-sushi, Nicolas Raoul Apr 1 '15 at 7:40

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