check your cpu (temps)/memories. i had similar issues and after i clean them and the rest, including replacing the thermal paste on cpu, everything was back to normal.also its a good idea to check memories (windows memory diagnostic tool)only this game had problems. no other game had any issue.another problem i had during that time was firefox crashing from time to time.i have no clue what fix it but it sure helped to clean it up. probably thermal paste on cpu although i've never checked temps during the game :)