I'm a long-time Windows user, and, unlike some people I've encountered, I like Windows 10 just fine. It seems fairly efficient and stable, and I have no trouble finding out how to do things.
It does have one pesky thing, as far as I am concerned. I like autohiding my taskbar. It might seem silly, but I like the clean look it gives the screen when it disappears. The problem with Windows 10 is, if there is some notification, somewhere, even one that doesn't actually show up for you, the taskbar pops back up, and stays there. And since it is officially hidden, it covers up the bottom parts of various program windows.
I fiddled with it and cursed for weeks, and searched for a solution. Most involved a lot of thinking and analysis. I hate doing those. At least, I hate doing them for something as dumb and minor as this.
Then I found someone on Reddit who had the solution: got to Task Manager and restart Windows Explorer. Boom! Works every time. I always have Task Manager open anyway, because some of my programs disappear but still have a process running somewhere and thus can't be restarted unless I hunt down and kill that process, so this is easy, and, actually kind of fun.
Yeah, somewhere a program is frustrated and eventually puts out another unread notification, but I'm not going to figure out which one it is. So, if you have my "clean workscreen" fetish, and have had this problem, this will make you happy.