I upgraded from Win 7 on one machine and 8.1 on another, over the last few days, and on my Surface Pro 3 a few months ago. Runs flawlessly on ALL machines. Quite pleased. Run SSDs on two machines, and it boots like right NOW!! Love it.
My buddy was running Windows 7, and he wa sone who just refused to upgrade to 10, but he also wanted to play some Killer Instinct, so only one way to do that on PC.
So after a couple of days he messaged me - man, I feel so stupid for trying ot avoid it for so long, it’s great.
7 was pretty solid, so I can understand why some want to stick with it, but 10 is just so smooth.
I can’t understand at all why anyone would want to stick with 8.1. That is the worst OS I have ever seen.