Finally, I have the time to install Windows 8 on my desktop. As a keyboard shortcut lover, the first thing I learned is how to use the key combinations in Windows 8.
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+start typing : Search your PC
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+C: Open the charms/ In an app, open the commands for the app
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+F: Open the Search charm to search files
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+H: Open the Share charm
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+I:Open the Settings charm
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+J: Switch the main app and snapped app
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+K: Open the Devices charm
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+O: Lock the screen orientation (portrait or landscape)
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+Q: Open the Search charm to search apps
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+W: Open the Search charm to search settings
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+Z: Show the commands available in the app
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+spacebar: Switch input language and keyboard layout
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+Ctrl+spacebar: Change to a previously selected input
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+Tab: Cycle through open apps (except desktop apps)
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+Ctrl+Tab: Cycle through open apps (except desktop apps) and snaps them as they are cycled
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+Shift+Tab: Cycle through open apps (except desktop apps) in reverse order
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+PgUp: Move the Start screen and apps to the monitor on the left (Apps in the desktop won’t change monitors)
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+PgDown: Move the Start screen and apps to the monitor on the right (Apps in the desktop won’t change monitors)
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+Shift+period (.): Snaps an app to the left
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+period (.): Snaps an app to the right
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+P: Switch displays
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+D: Switch to Desktop
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+Pause/Break: View machine and system info
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+X: Menu of advanced options for system management, command prompts, etc.
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+E: Open Explorer
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+R: Open Run command
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+L: Enable Lock screen
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+Plus or Minus(+/-) Key: Enable magnifier to zoom in and zoom out
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+Left/Right Arrow: Snap current window to the left/right
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+Up Arrow: Maximize window
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+Down: Minimize window
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+Home: Minimize everything but the active window
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
Esc: Stop or exit the current task