Kevin can't run Edge or Google Chrome on his PC. They won't open. Leo suggests launching in safe mode and see if it opens. If it does, then it could be a malicious extension. And Edge does import extensions from Chrome, so Leo suspects that that's where the culprit is. Here's an article on what to do if Chrome doesn't open. And here's one for Edge. Leo says it's not a common issue and sounds like something happening locally. Not a good sign.