UE4-ShooterGame Crash

Every time I try to hit the play button UE4 locks up and crashes to desktop. I have tried to validate and everything checks out but the problem is still there. So next I tried to launch as standalone game and it still CTD but I get a message this time (see picture). the thing that gets me is I don’t have an H drive. I can’t find much on Google so I am wondering if anyone here knows anything about this.

ok this again after a fresh install