I have Win 7 with Win7 firewall with TinyWall and using Emsisoft anti-maleware Pro and MalwareBytes Pro, MSE, Internet Explorer 11, that's it.
I use MSE since it's much more stable than other 'TOP' rated anti-virus's and it's integrated with Win 7 firewall and Explorer 11. I tried Norton, Avast, Avira, AVG, Comodo..etc . MSE isn't that bad, it does keep the 'Bad stuff' away. Plus, you DON'T need a different firewall !
Quiet and simple and it works