Close all programs at once(Windows XP, Vista, 7)

              You always need to close all open applications when installing new software or if you want to shut the computer down. And you want this to happen quickly!
              The free program Close All Windows saves you the trouble of closing each program individually. The small English tool is available at www.ntwind.com. Unzip the ZIP folder and copy the ‘CloseAll.exe’ file to the desired location. Installation is not required. It is practical to add the program file to the task bar of Windows 7 so that you can access it at all times. The quick launch bar is recommended in case of earlier versions of Windows.
               In future, one click on the icon will be sufficient to close all the open programs properly. In addition to that, you will need to answer all the dialogs with queries regarding the unsaved documents, which would mean just a few more clicks. No data will be lost. There is also an option of eliminating Individual programs from this command. You can exclude something like ‘firefox.exe’ so that an important browser session is not closed by mistake.