Windows key – Brings up the Metro start screen. You can start typing to search for an app, just like the Win7 start menu.
Windows + B – Switch to the (classic) Windows desktop and select the tray notification area.
Windows + C – Brings up the Charms menu, where you can search, share, and change
Windows + D – Brings up the old Windows desktop.
Windows + E – Launch Windows Explorer with Computer view displayed.
Windows + F – Brings up the Metro File search screen.
Windows + H – Opens the Metro Share panel.
Windows + I – Opens the Settings panel, where you can change settings for the current app, change volume, wireless networks, shut down, or adjust the brightness.
Windows + J – Switches focus between snapped Metro applications.
Windows + K – Opens the Devices panel (for connecting
to a projector or some other device)
Windows + L – Lock PC and return to Lock screen.
Windows + M – Minimize all Windows on the desktop
Windows + O – Locks device orientation.
Windows + P – Choose between available displays.
Windows + Q – Brings up the Metro App Search screen.
Windows + R – Switch to the (classic) Windows desktop and display the Run box.
Windows + U – Switch to the (classic) Windows desktop and launch the Ease of Access Center.
Windows + X -- Shows advanced start menu options.
Windows + Tab – Opens the Metro application switcher menu, switches between applications.
Windows + , (comma) – Aero Peek at the desktop.
Windows + Enter – Launches Narrator.
HAVE A TRICKY DAY!!!
Read more: http://www.way2hacking.com/2012/12/list-of-windows-8-shortcuts.html#ixzz2hJIN6L22