Unreal Engine 4.15 Crashing


I’ve updated my Unreal Engine 3 days ago and since then I wasn’t able to launch my editor anymore it load untill 96% and then I get a crash report.
I tried everything already veryfing looking for updates for my grapics card etc. but nothing helps atm.
The play version starts up successful but then I get a crash report after a few seconds too. The same happens with the Engine 4.15 itself.
I have a Hp Zbook 17inch
Can u guys help me?

LogFile is in the attachment