I have a problem with. I have a problem with a gane named Assassin's creed. It closes when I am in

Question

I have a problem with a gane named Assassin's creed. It closes when I am in the middle of the game and tells me that the game has encountered a problem and needs to close. the screen goes black and the game closes. I contacted UBI experts and did what they told me but the problem remains where it is.
i have
motherboard d11020 m intel
intel processor 3.2 GHz
nvidia geforce msi 8500 gt 512 mb card
2048 mb of ram
dvd 16x
realtek high definition audio