have been pushed on to 10
And also, the "improvements" generally don't seem to make usability better. Sometimes they remove an aspect that ought to be improved, like taking the start menu out of Win 8 when all it needed was to be made more user friendly. And they brought it back less user friendly because they confuse simplicity with usability. And those invisible, charmless "charms" that only appeared when you didn't need them. As with the ribbon, they seem to think that making everything visible, like it or not, is the same as making it easier to use ( except with the "charms" they were also invisible if you did need them.). They also seem to think that making some piece of crap compulsorily available will make us want to use it. It's testing on the users, but then a terrible inability to understand what the users want, or indeed to know who to listen to. I'd lay a bet, if I was a gambler, that they don't listen to office staff, directly. The people who are using this stuff daily.
There's a basic set of common sense rules that they don't follow. Have things that people need most close to hand in a place where they expect to find them. Remove distractions and allow people to store away out of sight stuff they seldom or never need, but make it easy to find them when they need them. And the Start menu breaks all those rules. It has items in alphabetical order, by the name of the product, whether users are likely to remember what the thing is called or not and makes it difficult to group them by function to narrow down the search. And it adds in items that can't be moved or removed at all, to make searching even more difficult and it allows installation programmes to add entire folders full of extra crap instead of just a single programme link, often listed by the stinking publisher's idiotic, meaningless name, not even the programme name.
As to hardware, the whole phone phiasco tells the story. I loved my Winphone, but as noted in that thread, am replacing it this week, for an Android.