This list of special key combinations has been compiled for your information. Most of them are used with the Windows key that you should find on the bottom left of your keyboard. Win7's Windows-key combinations speed up opening system tools, navigating between files and apps, and performing other common tasks. (Note that many of these shortcuts work in XP and Vista as well.)

Key Combos:

Win+Pause Displays the System Control Panel applet.
Win+D Shows the desktop.
Win+Spacebar Shows the desktop without minimizing open windows (Aero Peek).
Win+E Opens Windows Explorer with Computer selected.
Win+F Opens a Search window for finding files or folders.
Win+Ctrl+F Opens a Search window for finding computers on a network.
Win+G Cycles through Gadgets (if any are installed).
Win+L Locks your computer or switches users.
Win+M Minimizes all windows.
Win+Shift+M Restores minimized windows.
Win+P Chooses a presentation display mode.
Win+R Opens the Run dialog box.
Win+T Cycles through and previews programs on the taskbar.
Win+U Opens the Ease of Access Center (Utility Manager in XP).
Win+X Opens the Windows Mobility Center (which isn't installed by default on desktop PCs).
Win+(numbers 1 to 5) Starts the program pinned to the taskbar in the position indicated by the number. If the program is already running, it switches to that program.
Win+Shift+(numbers 1 to 5) Starts a new instance of the program pinned to the taskbar in the position indicated by the number.
Win+Ctrl+(numbers 1 to 5) Switches to the last active window of the program pinned to the taskbar in the position indicated by the number.
Win+Alt+(numbers 1 to 5) Opens the Jump List of recently accessed items for the program pinned to the taskbar in the position indicated by the number.
Win+Tab Cycles through open programs by using Aero Flip 3-D. (You must have Aero working; Win7 Home Basic and Starter don't use Aero.)
Win+Ctrl+Tab and then Left or Right Arrow Opens Aero Flip 3-D to cycle through open programs.
Win+Ctrl+B Switches to the program that displayed a message in the notification area.
Ctrl+click Pressing Ctrl while clicking a taskbar icon will scroll through multiple windows of that icon's application.
Win+Up Arrow Maximizes the window.
Win+Left Arrow Docks the active window to the left half of the screen.
Win+Right Arrow Docks the active window to the right half of the screen.
Win+Down Arrow Minimizes the window.
Win+Shift+Up Arrow Stretches the window to the top and bottom of the screen.
Win+Shift+Left or Right Arrow Moves the window from one monitor to another.
Win+Home Minimizes all but the active window.