Hey Guys .
I Read All Posts And tryed everything but didn't work
I tryed Borderless gaming but it says : <Error> and didn't work i tryed create new user but didn't work i tryed everything i promise
and i was thinking to update my windows to 10 but i didn't want to
So i tryed something new ... and it worked for me i hope This work for u too 🙂🙂
First : I Created a new account thanx to @yahel_1 in This link
do everything he said.
so after u created new account again thanx to @yahel_1 . do second part
Second : If u are using NVIDIA Graphic open task manager then press N letter then close this programs : NVIDIA Streamer User Agent - NVIDIA Streamer And everything that have Nvidia streamer
Third : Thanx to @sined23728. download This And open it in new user
Fourth : Open The game And Then Open Borderless Gaming and u see it dont say <Error> anymore and u can use it
Congratulations u Can have Full Screen now ...
Sry For Bad English...
I hope This work for u guys too.
Cya Guys.