Windows key: Display the Start Screen
Windows + D: Displays the Office
Windows + C: displays the Charms bar (ability to share, search, and settings)
Windows + I: displays the Control Panel
Windows + Z: displays the App bar for the application Metro active
Windows + Q: display Metro search
There are also other shortcuts which include more precise handling of Windows 8 such as
Windows + Esc: Switches the language and keyboard layout between several languages
Windows + Enter: Launches Narrator
Windows + Tab: Switches for one to another Metro application (the desktop, and everything in it, is considered as an Metro application)
Windows + W: opens in settings research
