Here’s the list of 22 windows 7 shortcuts

Here’s the list of 22 windows 7 shortcuts worth knowing (I’ve also included a couple of universal shortcuts that work on XP and Vista too):
Ctrl + Mouse scroll wheel
Change the size of icons on the desktop
Windows logo key + Tab
Cycle through programs on the taskbar by using Aero Flip 3-D
Ctrl + Windows logo key +Tab
Use the arrow keys to cycle through programs on the taskbar by using Aero Flip 3-D
Windows logo key + T
Cycle through programs on the taskbar.
Windows logo key + Spacebar
Preview the desktop.
Windows logo key + Home
Minimize all but the active window.
Windows logo key + Shift+ Left Arrow or Right Arrow
Move a window from one monitor to another.
Windows logo key + number (1 for the program that is nearest to start button, 2 for second nearest and so on…)
Start the program pinned to the taskbar in the position indicated by the number. If the program is already running, switch to that program.
Shift + Windows logo key + number
Start a new instance of the program pinned to the taskbar in the position indicated by the number.
Alt + Windows logo key + number
Open the Jump List for the program pinned to the taskbar in the position indicated by the number
Ctrl + Windows logo key + number
Switch to the last active window of the program pinned to the taskbar in the position indicated by the number
Ctrl + Shift + Esc
Quick Direct launch of Task Manager ( no need for ctrl+alt+del and then choose Task Manager from the list. This starts it automatically.)
Windows logo key + P
Choose a presentation display mode
Windows logo key + D
Shift to Desktop / Minimize all windows
Ctrl + W
Close the current window
Ctrl + Shift + N
Create a new folder
Shift (when you insert a CD)
Prevent the CD from automatically playing
Right or Left Ctrl+Shift
Change the reading direction of text in right-to-left reading languages
Windows logo key + M
Minimize all windows.
Windows logo key + Shift + M
Restore minimized windows to the desktop.
Windows logo key + L
Lock your Computer or switch user
Shift + Delete
Permanently Delete the selected item without moving to the Recycle Bin (be careful with this one)