Windows 8.1 64

Intel i7-4710 2.5 GHz

Nvidia 860M

8gb RAM

Fallout was working fine a few weeks ago, and then finals happened so I haven't played in awhile. Opened it up today and I can't get it to work. At first the second I would click 'Continue' it would crash to the desktop with no error. Now when I click 'Play' from the launcher it just goes to a black screen and then crashes to the desktop with no error. Not sure if it's the update or what. I've tried everything from a quick google but so far nothing has worked, partially because everything is over a month old.