My computer is ancient and by the specs below the requirements for this game, but it still can run TFH at a rate of 1.5 seconds/day. My extensive Electronics background, including but not limited to computer hardware and software, helps me make this possible; however, it should not allow me to avoid the CTDs people suffer. Are you running your game through Program Files? If so, change that. Make a directory specifically for HOI3 and see if this helps.