Windows 10 installation

I am currently using a computer that has windows 8.1. I cleanly reinstalled windows 8.1 today in an attempt to fix some issues but it did not work because some of what I use was made for windows 10 (i.e. my graphics card). I was installing windows 10 and it got to 80% and got stuck. I ended up...

Ok english is not my first language just saying.. So i got the asus strix oc gtx 1080ti a week ago and it is under performing and doing worse than my old 980ti. Anyone know what could be the problem? On cs and fortnite im gettin 120fps avg which is really bad when i have a 144hz monitor. Im...