What's your GPU? You haven't listed that.
whoops my bad. X_X
its AMD Radeon R7 200
wtf ok i just woke up and i tried it out again to see if it would run and it did run...
i still have absolutely no idea why it was being a pain in the ass yesterday but whatever.
I had the same problem. After pressing play at the loading screen that has option, support etc. I would press play, screen goes black for a second then FO4 closes outright without any evidence.
To get it to work try going to your Windows program compatability troubleshooter. click next to show the list of programs.. FO4 wasnt there for me. select the one that says "not listed"
on the browser navigate to your steam folder in program files, C:\Program Files (x86)\Steam\steamapps\common\Fallout this was my location. select the main program, not the launcher. then run the compatability troubleshooter on it. use its fix. if its not that one then try the launcher on in the same spot. this worked for me!
i'll try this out if it messes up again, thanks!! so far its doing alright