The machine is from 2013 and was pretty good back then, Latitude laptop with a Core i5 and 8GB ram. I still use it regularly as a personal linux laptop.
Getting to my point, this laptop is still good enough for normal use 8 years after I got it, and even if i was a daily windows users, what reason would i have to try and install windows 10? So it doesnt surprise me that many just keep the version their computer came with, and have kept their computers since windows 7 days.
Also, having just had to try windows 10, it really is a bad user experience compared to linux, mac, or windows 7, if nothing else because of added novelty for no reason. The only compelling thing about it for me is WSL, which I would definitely appreciate having on the same machine if I had a MS office heavy workflow.
I'm too lazy to deal with all the crap W10 in whichever incarnation brings.
It is very customised and locked down to basics, thus very minimal in resource usage, both memory and storage.
And it's not my main platform. I can dual-boot it natively, or the same install in a VM as needed.
I need to use some crappy applications which perform better under it, than on some Linux.
I don't like to have my strings pulled, and so on...
So...shrug?
Oh, yes, almost forgotten: It looks like Windows2000!1!! ;->