Hello everyone, I have a very big discovery about optimus on windows 10, by repeating the following sequence i get Black Ops 3 running with eGPU on internal screen with lastest driver 359.00: change your windows 10 laptop power behavior. Control Panel - Power - Advance - Action - Closing laptop lid- Do nothing. by doing this, avoid laptop go to sleep mode when you close the cover. attach your egpu with external monitor, press WIN+P, choose "second monitor only". Close your laptop lip, run Black Ops 3, wait until the game succefully launched, the game should be running by eGPU on external monitor at the moment. Reopen your lip, the external monitor will automatically close and the game with be switched to internal monitor. you will see that BO3 is rendered by eGPU on internal monitor, optimus enabled! conclusion, the WDDM 2.0 nVidia driver can work with WDDM 1.3 HD4000 driver on optimus mode. just an annoying bug which was produced by nVidia.