Windows+L locks the device and displays the Lock screen.

Windows+K opens the Connect pane to connect to wireless displays and audio devices.

Windows+I opens the Settings application.

Windows+H opens the Share charm on the right side of the screen.

Windows+E launches File Explorer with the Quick Access tab focused.

Windows+D toggles Show Desktop and the previous state.

Windows+C launches Cortana in listening mode so that Cortana accepts voice input right away.

Windows+B highlights the notification area.

If you’re one of them, check out this extensive list of keyboard shortcuts you can use to do virtually anything in Windows 10… Some folks prefer to use the mouse and avoid using the keyboard as much as possible, but others love the speed and efficiency gained by replacing three, four or more mouse clicks with a single keystroke combination. In fact, Windows 10 provides dozens of them for you to use at any time! Virtually every release of a new major Windows version includes a slew of new Windows shortcuts, and Windows 10 is no exception.

Windows 10 task view shortcut key