I do; thank you kindly for asking.
I have Norton 360 Premium and MalwareBytes Premium, running far superior detection & protection, to anything MS ever put out.
Those are excellent anti-virus applications and I use MalwawareBytes myself, but those don't protect against the exploitation of a bunch of insecurities inherent in the operating system itself. There are about 2000 known unpatched security vulnerabilities in Win7 by this point and those are just the publicly disclosed ones.