M15X DGPU Problems

Hi, I recently got a NVIDIA GeForce GTX 860m mxm video card for my alienware m15x. I installed it properly but i am having a problem where if I try to reload windows 10 via USB, it gives me a white screen and nothing else. Also when I went into the windows to Install the graphics driver it just says Microsoft Basic Display Adapter and I tried updating it and it says it's the latest driver. Any info on how to fix would be greatly appreciated, thanks in advance.

 

disable HD audio in bios first, you may have to put the old card in and put the IDT audio driver on first then put the new 860m in and install the modded nvidia driver

 

also download this driver for it, make sure to disable driver signature first before installing and it will work as i have a m15x with a 860M


this link is to my Google drive : https://drive.google.com/drive/folders/1IErJkAB3g8lMsx4K83gshQPYi9ub3Isl?usp=sharing