Just my opinion but...why would you want to run McAfee junk on your Mac (notice it's Mac, not MAC) anyway? It's always been a huge resource pig on both pc's and Macs. There are better tools to use on your Mac, Apple's own built in security will catch most anything. I'd consider running ClamX AV instead of Mcafee. If you're really paranoid or just want more protection from outgoing and incoming connections, then buy Little Snitch and install it too.
McAfee? YUK! Don't waste your time. If you've been a Mac user for any amount of time you know it's not worth wasting your time with companies that don't have a clue and won't keep up to date with Mac apps, they have tunnel vision and think the world revolves around Microsoft. Pick your battles and don't stress out over Windoze-world dummies who don't have a clue, LIFE IS TOO SHORT. You aren't going to convince them, you're just going to get a dumb, clueless stare when you start trying. That usually comes from Windoze IT jurks yelling about keeping their job, they know how much better Macs are and how much less virus-prone they are, and they worry about their jobs. I can't begin to tell you how many surveys and field tests have been done over the years proving how much more efficient and SAFE Macs are in networking environments..well these IT guys want to feed people lies because they worry about their job. ClamX and Little Snitch and Mac's built in security is far superior to any PC junk like McAfee and Norton trash.