Launcher crashes, no error. Looked up event logs and found this: Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: UE4-UnrealEngineLauncher P2: 1.0.0.0 P3: 53273dec P4: UnrealEngineLauncher.exe P5: 1.0.0.0 P6: 53273dec P7: c0000005 P8: …

I am up to date on everything that is relevant. I reinstalled the nvidia control panel after messing around with options and not resolving the issue. This fixed the problem for me. Thanks for all the help!