If we could turn back the clock Windows 8.1 I'd be.
Have had way too many failures with Windows 10 in that it has managed to mess up one, or more than one aspect on each PC I own. Updates have been very hit-n-miss for me with us now finding ourselves sitting on edge just waiting for one to complete... Actually, I've stopped updating many of mine awhile ago because we are sick and tired of dealing with the aftermath.
Going back to the Windows 95 days can't say I recall one being so problematic as Windows 10 has been. Probably attributed to the "constant" updated MS installs on us, and one reason I'd prefer they tone it down to only one or two a year. Would give them more time to perfect, if that's possible.
It's really gotten to a point for me personally that I'm so tempted to dump Windows altogether if my present experiences continue. Didn't think I would have see a day when an OS took up so much of my time trying to diagnose in an attempt to resolve issues, gets downright frustrating at times. And no they are not all major issues yet the point is, the PC is no longer function as it was intended, or should be.