Windows 8 Keyboard Shortcuts….

Windows Logo Key	Display Start Menu
Alt + F4	Close application (Desktop and Metro)
Win + X	Admin tools menu
Ctrl+plus (+) or Ctrl+minus (-)	Zoom in or out of a large number of items, like apps pinned to the Start screen
Ctrl+scroll wheel	Zoom in or out of a large number of items, like apps pinned to the Start screen
Windows logo key‌ +C	Open the charms
Windows logo key‌ + F	Open the Search charm to search files
Windows logo key‌ +H	Open the Share charm
Windows logo key‌ +I	Open the Settings charm
Windows logo key‌ +J	Switch the main app and snapped app
Windows logo key‌ +K	Open the Devices charm
Windows logo key‌ +O	Lock the screen orientation (portrait or landscape)
Windows logo key‌ +W	Open the Search charm to search settings
Windows logo key‌ +Z	Show the commands available in the app
Windows logo key‌ +spacebar	Switch input language and keyboard layout
Windows logo key‌ +Ctrl+spacebar	Change to a previously selected input
Windows logo key‌ +Tab	Cycle through open apps (except desktop apps)
Windows logo key‌ +Ctrl+Tab	Cycle through open apps (except desktop apps) and snaps them as they are cycled
Windows logo key‌ +Q	Open the Search charm to search apps
Windows logo key‌ +Shift+Tab	Cycle through open apps (except desktop apps) in reverse order
Windows logo key‌ +PgUp	Move the Start screen and apps to the monitor on the left (Apps in the desktop won’t change monitors)
Windows logo key‌ +PgDown	Move the Start screen and apps to the monitor on the right (Apps in the desktop won’t change monitors)
Windows logo key‌ +Shift+period (.)	Snaps an app to the left
Windows logo key‌ +period (.)	Snaps an app to the right
Esc	Stop or exit the current task
Win + L	Lock your PC and return to logon screen
Win + Enter	Starts Windows Narrator
Win + Print Screen	Saves a screenshot in the picture library screenshot folder
Alt + Tab	Classic app switcher
Win + Tab	Metro app switcher
Tab	Select different items