acer aspire v 17 nitro black edition

AllioOs

Hello Everyone !

I started experienced massive issue with my laptop, i was trying to fix it by myself but now im out of the options

Im not able to play any games at fullscreen mode anymore, if im playing fullscreen and press alt tab my whole laptop freeze but i can still hear sounds everything properly but cant ctrl alt del anything..

 

In window or borderless everything is working normally which is wierd..

 

I reinstalled whole system everything is up to date.

 

Any help would be highly appreciated

i7 6700 HQ

gtx960m 4gb

8GB ram

win 10