Ctrl+C

For Copy

Ctrl+X

For Cut

Ctrl+V

For Paste

F11 or Windows logo key + Up arrow

Maximize Window

Windows logo key + Tab

Open Task View

Windows logo key + D

Display and hide the desktop

Windows logo key + X

Open the Quick Link menu

Windows logo key + L

Lock your PC

Windows logo key + PrtSc

For Screenshot

Alt + Tab

Switch between open apps