Date Execution Prevention Keeps restarting Internet Explorer

If I sit on the internet for a long enough period (I am not letting it linger, mind you) Date Execution Prevention (DEP) closes my windows saying it's pretecting me from malicious malware. It does that whether I am on Youtube, Google, or Facebook. I am sure, atleast I think, none of those sites has malicious contain. So I am wondering if there is anything I can to stop DEP from acting up when nothing is wrong. It only comes up on the internet though so I may have a virus but I ran a MacAfee Scan it says I have no virus' so I don't know what to do. Should I turn DEP off? Afterall, I have McAfee protection. Or do I maybe actually have a virus. Help please and thank you.