I have two computers at home that I use for work and both have Windows 7. I love it. They switched over to Windows 10 on all the computers at the office last year and have had nothing but problems ever since (automatically updating in the middle of the work day, crashing for no reason, not able to use certain critical programs, etc.).
I 𝑳𝑶𝑽𝑬 Windows 10!
I don't have it on any of my machines, but my friend/next door neighbor's new PC got a Win 10 force-load last spring.
Whenever the Win 10 updates break his machine, I get to swoop in and be The Computer Hero.
Last week, an update croaked his Ethernet NIC. We accomplished some needed computer hardware changes to enable a fast swap between his desktop box and his travel laptop, and the actual NIC fix only took 15 minutes after I got some time to research it.
He and his wife both love me. 😀