Sorry. I posted this in the wrong spot.
You can have Norton and McAfee. Norton is just way too bloated and I always had a problem with McAfee. I had Norton in one computer and McAfee in another. But on this computer I used AVG freebie for two years and never had a problem. I now use the AVG professional and of all the 5 or 6 scanners I've used, I think it's the best.