WINDOWS 8 KEYBOARD SHORTCUT

windows key → It's main function is to switch between the “Start screen” and the Desktop (if open)

Windows key + D → This shortcut is used for opening the “Desktop”.
Press the Windows key +.(Dot) → This is used to pin and unpin applications to the side of the screen

Windows key + X → This is used to open the Power user-menu, which allows easy access to features such as the "Device Manager","Command Prompt"...

Windows key + C → This is used for opening the “Charms”

Windows key + I → It's used for opening the "Charms" settings

Windows key + Print screen → This shortcut helps to take Screen-shots which is automatically saved into the “My pictures” folder

Hold Windows key + Tab → This works as the Alt + Tab function in previous versions of windows, i.e To switch between open apps