Computer crashes ingame random times

[LemmingKing]

I would like to ask for help please, I was playing one day and finished a whole game (lost but still finished it) then the next after adding AoDII mod to the game it starts crashing my entire computer at random points (crash = forceful restart), and even after deleting the mod it still crashes, I meet the system requirements even though my graphics card could be a bit better but I see no reason why that should forcefully restart my computer.