Re: The cost of Win10 is far too high.
Keyboard shortcuts are a huge pain. To shut down Windows 7 (assuming it is the default option) is Winkey+Tab+Enter. On Windows 10, it is Winkey+Tab+Down+Down+Down+Enter+Down+Enter.
I just press Winkey+D, then ALT+F4 to get to the shutdown menu.
I'm more annoyed by the new settings menus, hiding of the old Control Panel and so on. I'm sure they're easier to use with a touch screen but they're making things harder with the keyboard warriors.
Oh, and "Lock" and "Sign Out" are in a different part of the menu as well, rather than all in the same place.
Winkey+L has locked the desktop since W2K. And C-A-D+Enter has worked since at least NT4 to lock and the C-A-D menu also contains the sign out option.
Once again, I'm more annoyed by the change of "log out" to "sign out" in the shutdown menu...
Interestingly, search for solutions for lots of these things and MS just recommends using Search.
The start menu search from Vista onwards has been very handy. No need to navigate the menus for something, just start typing e.g. 'notepad' and on my Windows it immediately suggests Notepad++ and Notepad after the first letters.