Additional info: 

Windows + Ctrl + Shift + B

If your PC or laptop hangs again and again, then pressing below shortcut refresh it completely without shutting down.

Window + Shift + S

you can take a screenshot, You can also take a screenshot of a specific area or full screen.

Window + H

Express turns on voice typing, so you can type everything by speaking and number

Windows + Alt + R

you can do direct screen recording, that too without any software and number five will be useful

Windows + X + U(two times)

Direct restart your PC.