I uninstalled everything. I did a clean sweep of all fallout 4 and nexus mods files on my system.. deleted them all that was left after uninstalling. I reinstalled Fallout 4 run game no crashes. I installed nexus mod manager with out changing the .ini files.. game runs I changed the .ini files to what they want and CTD happens. so something with changing the .ini files is causing the crashes.. I haven't even installed a mod and its CTD