Some handy keyboard shortcuts you can use in Windows 8.1
WINKEY - Toggles between Desktop and Start Menu
Esc Key - If you have the Desktop running it will exit to desktop whenever in Start Menu
WINKEY + , Provides Peak of Desktop if open
WINKEY + B Switch to the Windows Desktop and select the tray notification area.
WINKEY + C Display Charms and notification
WINKEY + D Switch to the Windows desktop and toggle Show Desktop.
WINKEY + E Switch to the Windows desktop and launch Windows Explorer with Computer view displayed.
WINKEY + F - Search Files using the new Windows Search pane.
WINKEY + I - Display Settings pane for the Start screen.
WINKEY + L - Lock PC and return to Lock screen.
WINKEY + M - Minimize the selected Explorer window.
WINKEY + O - Toggle orientation switching on slate and tablet PCs.
WINKEY + P - Display the new options for items like projectors.
WINKEY + Q - Search within Apps using the new Windows Search pane.
WINKEY + R - Switch to the Windows desktop and display the Run box.
WINKEY + U - Switch to the Windows desktop and launch the Ease of Access Center.
WINKEY + X - Switch to the Windows desktop and Administrative tools.
WINKEY + Z - Display the App Bar in a Metro-style app.
WINKEY + 1, WINKEY + 2, WINKEY + 3 ,,,, Launches each of the classic desktop Task Bar apps from Left to right.
These are Windows Classic Desktop Keys
WINKEY + . List all Running Apps
WINKEY + 1, WINKEY + 2, WINKEY + 3 ,,,, Launches each of the classic desktop Task Bar apps from Left to right.
WINKEY + B - Select the tray notification area.
WINKEY + C - Display Charms and notification
WINKEY + D - Toggle Show Desktop. Very cool feature to help find other apps / shortcuts on desktop
WINKEY + E. Launch Windows Explorer with Computer view displayed.
WINKEY + F - Search Files using the new Windows Search pane.
WINKEY + I - Display Settings pane for Windows Desktop
WINKEY + L - Lock PC and return to Lock screen.
WINKEY + M - Minimize the selected Explorer window.
WINKEY + O - Toggle orientation switching on slate and tablet PCs.
WINKEY + P - Display the new options for items like projectors.
WINKEY + Q - Search (within) Apps using the new Windows Search pane.
WINKEY + R - Display Run box.
WINKEY + U - Launch Ease of Access Center.
WINKEY + W - Search Settings using the new Windows Search pane. Defaults to Settings first
WINKEY + X - Switch to the Windows desktop and Administrative tools.
WINKEY + Left or Right Arrow - Aero Snap Moves position of selected app.
WINKEY + Up Arrow - Will Maximize Selected App
WINKEY + Down Arrow - Will Change app from Maximize to Normal then to Task Bar of Selected App