Windows 8 Keyboard Shortcuts
Windows Key (tap)- Toggles between the Start screen and the foremost running app (Metro-style) or the Windows Desktop.
Windows Key + 1, Windows Key + 2, etc. - Switch to the (classic) Windows desktop and launch the nth shortcut in the Windows taskbar.
Windows Key + B - Switch to the Windows desktop and select the tray notification area.
Windows Key + C - Display Charms and time/date/notification overlay.
Windows Key + D - Switch to the Windows desktop and toggle Show Desktop.
Windows Key + E - Switch to the Windows desktop and launch Windows Explorer with Computer view displayed.
Windows Key + F - Display File Search pane
Windows Key + H - Display Share charm.
Windows Key + I - Display Settings charm.
Windows Key + J - Swaps foreground between the snapped and filled apps.
Windows Key + K - Display Devices charm.
Windows Key + L - Lock PC and return to Lock screen.
Windows Key + M - Minimize the selected Explorer window.
Windows Key + O - Toggle orientation switching on slate and tablet PCs.
Windows Key + P - Display the new Project (for "projection") pane for choosing between available displays.
Windows Key + Q - Search (within) Apps using the new Search pane.
Windows Key + R - Switch to the Windows desktop and display the Run box.
Windows Key + U - Switch to the Windows desktop and launch the Ease of Access Center.
Windows Key + V - Cycles through Notification toasts.
Windows Key + W - Display Settings Search pane
Windows Key + SHIFT + V - Cycles through Notification toasts in reverse order.
Windows Key + X - Access the advanced context menu on the Start preview tip.
Windows Key + Z - Access the App Bar.
Windows Key + ENTER - Launches Narrator.
Windows Key + SPACEBAR - Switch input language and keyboard layout
Windows Key + TAB - Cycle through apps in Switcher.
Windows Key + SHIFT + TAB - Cycle through apps in Switcher in reverse order.
Windows Key + CTRL + TAB - Cycle through apps, snapping them as you go.
Windows Key + PGUP - Moves the Start screen to the display on the left.
Windows Key + PGDN - Moves the Start screen to the display on the right.
Press "Windows Key + PrntScr" keys together and a screenshot will be automatically saved to "Pictures" library folder. The screenshot is saved with the name "Screenshot.png".
The new hotkey of "Shift+F8" replaces “F8” to boot into Safe Mode.