few days ago when i was playing AC Unity, the game stopped working and crashed. Later i came to know that my Nvidia Geforce GTX 950m graphics driver is missing from the device manager list.Now if i try to reinstall the graphics driver it doesn't allow me to do so as it says that cannot find compatible graphics hardware.Please help me with the problem.
Either your graphics card is damaged or it has come loose in its socket. Open up the case and try re-seating it first. If that doesn't work you need to try an alternative card. Does your motherboard have onboard graphics?