Launch Fallout 4 on computers with low system requirements.
In Fallout 4 are pretty high system requirements, but the game requires quite less for that to work.
The players themselves have already made a patch which will start Fallout 4 on weak PC and play them comfortably.
Installation – Install the patch in your game folder
Download – patch Low PC Fallout 4
P.S. The graphics in the game will be about the same as in the minimum settings.