Here it is, by popular, frustrated demand: The master list of every secret (or not-so-secret) keystroke in Windows 10. Clip and post to your monitor (unless, of course, you got this book from the library).
Open or close the Start menu
Open or close the Action Center
Speak to Cortana
Open the Share panel
Open the Devices panel
Open the System Properties dialog box
+Pause (or +Break)
Display the desktop
(At the desktop:) Highlight ...