Twenty Windows 7 Keyboard Shortcuts | Shortcut Key
From Desktop
Windows Key + Tab = Aero
[press Tab to cycle between Windows]
Windows Key + E =
Windows Explorer is launched.
Windows Key + R = Run
Command is launched.
Windows Key + F = Search
(which is there in previous Windows versions too)
Windows Key + X =
Mobility Center
Windows Key + L = Lock
Computer (It is there from the earlier versions as well)
Windows Key + U = Ease
of Access
Windows Key + P =
Projector
Windows Key + T = Cycle
Super Taskbar Items
Windows Key + S =
OneNote Screen Clipping Tool [requires OneNote]
Windows Key + M =
Minimize All Windows
Windows Key + D =
Show/Hide Desktop
Windows Key + Up =
Maximize Current Window
Windows Key + Down =
Restore Down / Minimize Current Windows
Windows Key + Left =
Tile Current Window to the Left
Windows Key + Right =
Tile Current Windows to the Right [Continue pressing the Left and Right keys to
rotate the window as well]
Windows Key + # =
Quicklaunch
Windows Key + = = Magnifier
From Windows Explorer
Alt + Up = Go up one
level
Alt + Left/ Right = Back/ Forward
Read more Tricks at Computer Tweaks and Tricks