Windows Vista can be quickly shutdown with a shortcut on your desktop. Creating shutdown shortcut can be by following these simple steps.
1. Right Click on the Desktop and Click on New –> Shortcut
2. In Type the location of the item: enter the Shutdown –s t 00 and click Next
3. Provide a name to the shortcut like Quick Shutdown and Click Finish.
4. A new shortcut will be created in your desktop. Clicking on this will shutdown your computer. You can also drag this shortcut and place it on the Quick Launch menu