This isnt a cure-all: it only tries to fix crashes related to access violation exceptions at specific offsets / addresses. I'm writing this in the hope to save someones time, because its not a well known issue (afaik), but a very confusing and annoying one. NVAC (short for New Vegas Anti Crash) is an NVSE plugin that implements structured exception handling and sanity checking to reduce frequency of game crashes. I don't know if rolling back the driver is enough on its own, because i did both together, but if you do both you should be good. After rolling back to that driver and and installing the fresh beta version of New Vegas Anti Crash my game worked just fine again.

After some research google confirmed that it was indeed the new Windows 10 Update that made Fallout NV (and apparently even Fallout 3) unplayable, if you have an Nvidia Card with a driver newer than version 368.81. Similarly, New Vegas is a very buggy game, even eight years later. NVAC is a simple mod that reduces the chance that your game will crash. Thats when i remembered a Windows update between my last time playing NV and now. Unfortunately, Fallout New Vegas is a game that suffers from frequent crashes, especially if you heavily mod it. I even uninstalled all mods and redownloaded the entire game, but it still crashed. I've tried for hours trying to fix the problem, because i thought a mod was causing the issue. Everytime id start a game (new or loaded) it would crash.

I've recently started playing New Vegas again and im loving it.

New vegas crash fixes