Have tried everything i could think of and keep getting this message as fallout tries to launch. Did the borderless/windowed mode, checked another game (skyrim) and it runs fine. I did a clean install of the GTX 970 as well.

Problem signature:
Problem Event Name: APPCRASH
Application Name: Fallout4.exe
Application Version: 1.2.33.0
Application Timestamp: 564e4f3f
Fault Module Name: nvwgf2umx.dll
Fault Module Version: 10.18.13.5891
Fault Module Timestamp: 563b64b1
Exception Code: c000001d
Exception Offset: 0000000000a7c475
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional Information 1: 3aac
Additional Information 2: 3aac286e4df04e4db3a32c31a9c082be
Additional Information 3: 881f
Additional Information 4: 881f1c5f00a4ad10c1de0a4fa5b8052a

Updated the driver, rolled back the driver, "optimized" game in GeForce, etc. Still the same crash. WTF

With it not being a specific Fallout 4 issue it might be worth using Google instead.

https://www.google.co.uk/search?q=appcrash+c000001d&oq=appcrash

Seems several different things can be the cause and fix.

? It does seem to be specific to Fallout 4--Skyrim works fine.

I'm not saying its not Fallout 4, but its an error code almost a decade old, so I'm sure its got something similar with other errors people have had. If you want to fix it you might have to do a little digging.

OK, yeah i understand. I just want my game to work but it looks like its going to be more complex than I want it to be....

Frustrating since I am uing the recommended GPU! I wonder if I need to go with a different GPU

Try to search "NVidia GTA V ready driver", I had a same crash after updating my gtx 750 ti, so I found this and installed. All works

^^^ Hey that seems to work! Very weird though. I guess I can't play the game "optimized" for some reason. For example "actor fade" is 14,705 out of 15000.

Thanks for that. You helped more than the Nvidia guy who i was online with for 2 hours this morning. Crazy that the latest driver doesn't work with my rig......oh well. i hope a new one works soon, would be nice to be able to optimize the game especially since Bethesda recommends the 970.....

You'd have thought their upto date driver would work with a bloody 970, its the one most sites recommend to buy.

With pleasure

I know! I wonder if it's something specific to my rig.....weird that I have to use a 5 month old driver update. Maybe new(ish) ones will work but i am just happy SOMETHING seems to work.....