Not sure about the top one but do you use mods in fallout4.

naturally, that is why I want to know it there is a simple way to find out what is causing the issue.

I don't know if there is a simple way but I found this on a reddit post that might help you find out what is causing the crash.

Crashes are usually caused by a few reasons;

- More than one mod changes the same asset, and they conflict in how they do it. The same piece of armor, the same mailbox, the same building.

- Mod authors not correctly removing objects from the game - either specific objects or even terrain elements (navmeshes) - this is not good as when the base game or another accesses these objects - instant CTD.

- Removing mods from a save - the game does not like it when mod that alter game mechanics are removed - this can lead to save corruption over time

Now, usually these issues are focused around specific objects, npcs or locations.

Most crashes are not really random - there was a fixed object (like a tree, building, etc.) or a non fixed object that had an issue (an npc with issues, or even with a specific weapon, etc.).

With some combos of mods, it might even layered even more complexly (like only crashing at night due to lighting mods, or only when approaching the area from a specific direction, etc.)

So it helps to think about what the player was doing - who was near, what common assets, sounds etc. Then think about what mods might do that.

("I keep crashing when running to gunners....then look at gunner or armor overhaul mods, etc.)

Also, if a crash can eventually be tied to a specific item or object, examine that object in the console - you can get an id, or even a mod name which will help in investigation.

If you can't identify a specific mod easily, the brute for approach may be necessary;

Turn off all mods and use clean save or console start (from loading screen use the console to start in an area - coc sanctuaryext for example will place a test character in sanctuary) to see if your base game is messed up.

Then add mods back in groups to see when crash happens (I add about 10 or 20 at time, then add one or two to find issues).

Then you an check the comments sections for those mods, or if you are good with Fo4 edit, look at them yourself.

Finally, there ocassionally may be a driver issue or some other system incompatabiltiy (incredibly rare, but can happen. Try googling your video card or try turning off your enb; for example, supposedly there is and issue with Nvidia 20xx series cards and "weapon debris" settings).

A good mod manager helps in finding issues and turning mods on and off;

* Vortex is powerful, somewhat easy to use, and well supported.

i think best bet is to ask Nexus support about the first one

thanks, was thinking about that.