Windows 7 Window Key Shortcuts

Use these keyboard shortcuts to quickly navigate Windows 7 using the Windows logo key (Win). You’ll find using the keyboard an efficient alternative to depending on your mouse.

Key or Key Combo	What It Does
Win	Displays (or hides) the Start menu
Win+D	Displays the desktop
Win+E	Opens a Windows Explorer window
Win+F	Displays the Search window for files and folders
Win+Ctrl+F	Displays the Search window for networked computers
Win+G	Cycles through Sidebar gadgets
Win+L	Displays the Welcome/Logon/Lock screen
Win+M	Minimizes all open windows
Win+Shift+M	Restores all windows minimized with Win+M
Win+R	Opens the Run dialog box
Win+T	Cycles through taskbar programs
Win+Tab	Cycles through taskbar programs using Flip 3D
Win+U	Displays the Ease of Access Center
Win+F1	Displays Windows Help
Win+Break	Displays the System Properties dialog box

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Source:http://www.dummies.com/how-to/content/windows-7-window-key-shortcuts.html