Grew up on XP and later 7. While I love XP for the nostalgia, Windows 7 is much better from an accessibility perspective. XP's Magnifier can't do fullscreen zoom but 7's can, and I rely on that to even be able to use a computer.

Windows 7 was also the last version of Windows to not include malware, spyware and adware out of the box. What do I mean by malware? Well the spyware and adware is obvious, but the later OSes like to futz with your privacy and other settings (or, at the very least, nag you to change them) without your consent. That's malware. Leave my damn computer alone, Microsoft. No, I will not finish setting up my PC by switching to Edge and a Microsoft account, it's fine the way it is.