I'be been in IT for many years, and myself and most of my buddies use AVG from Grisoft, which is free for personal use. I also have Spybot on my machine as well, which is also free.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85