Tech Tip: Cool Windows 10 shortcuts
Windows Key + D – Missing the desktop? This will hide all windows and show you the desktop. Press it again and it will bring back the same windows that were active earlier.
Windows Key + L – A quick way to lock the screen in Windows 10
Windows Key + E – Opens Windows Explorer. If you’re always working with files this is a very useful shortcut.
Windows Key + 1,2,3 etc – Open programs that are pinned to your task bar.