Windows 7 Tricks (Part - 2)

[Windows] + [Spacebar]
Make all open windows transparent to view gadgets and icons on desktop.

[Windows] + [D]
Show or hide the desktop.

[Windows] + left arrow OR [Windows] + right arrow
Dock selected window to the left or right half of your screen.

[Windows] + up arrow OR [Windows] + down arrow
Maximized and restores the selected window.

[Windows] + [SHIFT] + up arrow OR [Windows] + [SHIFT] + down arrow
Maximizes and restores selected window in vertical dimension only.

[Windows] + [Tab]
Launch 3D representation of open windows and click [Tab] key again to flip through them.

[Windows] + [+] OR [Windows] + [-]
Activates Windows Magnifier to zoom in or out of screen.

[Ctrl] + [Alt] + [D]
Switch to docked mode.

[Ctrl] + [Alt] + [L]
Switch to lens mode.

[Ctrl] + [Alt] + [F]
Switch from docked or lens mode back to full screen mode.

[Ctrl] + [Alt] + [I]
Invert colors.

[Ctrl] + [Shift] + [Esc]
Show the task manager.

[Windows] + [Esc]
Exist magnifier views.