If you’ve installed Windows 8 in a VM, I’m finding Keyboard-Shortcuts are going to be your friend. Below is a list of Shortcuts I’ve found so far for Metro. I’m sure I’ve missed about… a million so if you see any I’ve not listed, please add your findings to the comments so we can build a nice comprehensive list.
I expect most of the standard desktop keyboard shortcuts from Windows 7 will still work outside the Metro UI so I’m only going to focus on Windows 8 Metro Keyboard Shortcut keys here. If you see something missing form the list below, please drop it in the comments and I’ll add it to the chart.
Definition:
Charms : Icons on the right which offer Search, Share, Start Menu, Devices and Settings.
Windows Key : Windows Logo Key on a standard keyboard built for the Microsoft Windows OS.
App Key 
: Application Key picturing a Mouse Cursor on a Menu. Normally found to the Right of the Spacebar on a standard keyboard.
ESC : Escape Key on a standard keyboard.
Shift : Shift Key on a standard keyboard.
ALT : ALT Key on a standard keyboard.
PgUp / PgDown : The Page Up and Page Down Key on a standard keyboard.
Metro UI : Touch sensitive Windows 8 UI based off the Windows 7 Phone Metro UI Interface. The Metro “desktop” hosts all Metro based Apps and Non-Metro based Icons.
출처 : http://www.groovypost.com/groovytip/windows-8-metro-keyboard-shortcuts/
Windows 8 Metro Keyboard Shortcut Keys
| Windows Key | Jump between Start Metro Desktop and Previous App |
| ESC | Return to Previous App |
| Windows Key + spacebar | Switch input language and keyboard layout |
| Windows Key + Y | Peek at the Desktop |
| Windows Key + X | Open Windows 8 Advanced Tools Context Menu |
| Windows Key + O | Lock device orientation |
| Windows Key + V | Cycle through toasts |
| Windows Key + Shift + V | Cycle through toasts in reverse order |
| Windows Key + Enter | Launch Narrator |
| Windows Key + PgUp | Move Tiles to the Left |
| Windows Key + PgDown | Move Tiles to the Right |
| Windows Key + Shift + . | Move Metro App Split Screen Left |
| Windows Key + . | Move Metro App Split Screen Right |
| Winodws Key + S | Open App Search |
| Windows Key + F | Open File Search |
| Windows Key + C | Open Charms Bar |
| Windows Key + I | Open Charms Settings |
| Windows Key + K | Opens Connect Charm |
| Windows Key + H | Open Share Charm |
| Windows Key + Q | Open Search Pane |
| Windows Key + W | Open Search Settings |
| Windows Key + Z | Open App Bar |
| Arrow Keys | Select Metro Apps Left, Right, Up, Down |
| CTRL + Arrow Right | Move 1 Page Right on Metro UI Menu |
| CTRL + Arrow Left | Move 1 Page Left on Metro UI Menu |
| Arrow Key, ALT + Arrow Right | Move Metro App Right |
| Arrow Key, ALT + Arrow Left | Move Metro App Left |
| Arrow Key, ALT + Arrow Up | Move Metro App Up |
| Arrow Key, ALT + Arrow Down | Move Metro App Down |
| Windows Key + L | Lock Screen |
| Windows Key + E | Launch Windows Explorer on Classic Desktop |
| Windows Key + R | Launch Run Box on Classic Desktop |
| Windows Key + P | Projector Mode – Select Projector Output |
| Windows Key + U | Launch Ease of Access Center |
| Windows Key + T | Launch Classic Desktop with Arrow Key Icon Selection |
| Windows Key + X | Launch Windows Mobility Center on Classic Desktop |
| Windows Key + B | Launch Classic Desktop with Arrow Key Taskbar Icon Selection |
| Windows Key + M | Launch Classic Desktop with Arrow Key Desktop Icon Selection |
| Windows Key + D | Jump to Desktop Mode from anywhere |
| Arrow Key, App Key | Display Unpin Option and Advanced Metro Icon Icons |
| ALT + F4 Key | Closes the active app. |