How to block McAfee pop ups

[chris...]

How to block McAfee antivirus alert scam

I don’t think he uses McAfee, otherwise he obviously wouldn’t be posting here. It’s probably just another one of those nasty fake Windows notifications that have been popping up more and more lately. The solution is usually to disable push notifications in your browser. https://www.reddit.com/r/computerviruses/comments/1o6atyx/this_keeps_popping_up/