Alienware 17 upgrade (issue) 880M to 1060

[Sala7blade]

Hi , So I have Alienware 17 880M i74910MQ 240W 120hz display Windows10. Wanted to upgrade it to gtx1060 here is what I did:- 

SSD Already on GPT 

unlocked the bios

set the video mode to PEG

Installed the new gpu (1060) then restart

didn't boot  gave me 8 beeps and black screen

boot mode set to uefi

it booted after couple tries 

the only step now needed is a modded driver <--- I'm not sure if I did this right

I get the above message,

when I went to device manger, I selected show hidden devices (cuz Display Adapters was not showing)and it showed 880M transparent I uninstalled it thinking that I would help me install 1060 instead then the Display Adapters gone forever.

tried restart many times no good , the GPU is detected in bios tho, however not in device manger anymore

I don't know where to go from here?

Any support would be appreciated

Thank you 

Edited July 31 by Sala7blade