Keyboard shortcuts help you do things faster by keeping your hands on the keyboard and not reaching for the mouse. Windows offers a number of built-in shortcuts that rely on the Windows key (if you own a Think Pad you’re out of luck). Here’s a list of the Windows key shortcuts and their corresponding functions.

At its most basic, the Windows key launches the Start menu so you don’t need to click it with your mouse.
+ E
Opens a new Windows Explorer window. This is one of the fastest ways to browse files in all versions of Windows.
+ D
Hides all windows and shows your desktop. Use this combo again to return to viewing the most recent Window.
+ F
Open a Find window using this keyboard shortcut.
+ L
Lock your screen on any version of Windows when you step away from your desk.
+ M
Minimize all open windows. This is different than the Win key + D shortcut because it actually minimizes everything instead of simply hiding it.
+ Shift + M
To undo a minimize, use this combo to restore your Windows.
+ R
Display the Run dialog instead of actually clicking Start and clicking Run.
+ F1
Launch the Windows Help files.
+ Pause
Show the system properties without needing to visit the control panel or right-click on My Computer.
+ Tab
Prior to Windows Vista, this cycled through items in the Taskbar. With Vista you get a 3D effect and live window preview.