Re: Gtx 860m--device removed (i would like a refund)
you are playing this on a laptop, you need to create a profile for it that tells the computer to not use the Intel graphics and always use the Nvidia discrete when playing the game.... or to globally use only the NVidia graphics. This is a common issue on all laptops and all games.
It can also be that the newest driver from NVidia will not switch between GPUs properly and you need to get the drivers approved by the manufacturer which are probably older.