Alright i would say that McAfee is the source of the evil there. As it usually is. McAfee isnt that great. Did you pay for the service? If so sorry to hear that. Could have gotten a better AV for free.
But onto the issue. I have not used McAfee in years. Did you check in the McAfee forums? I know a Mod there who knows that product inside and out. They should be able to answer any questions regarding it.