Click, and bang, all opening windows disappeared. Sounds pretty neat, doesn’t it? Close All is a free portable small utility that lets you just do that, and do that only with just a single click.
Download the tool and extract the executable file to a convenient location where you can easily access. If you plan to use it often you can pin the executable file to the Taskbar in Windows 7 by right-clicking the file and choosing Pin to the taskbar, or create a shortcut in the quick launch bar in XP.
The zipped download file contains 2 version of CloseAll.exe files, one for 64-bit Windows and one for 32-bit. Choose one that suits the edition of Windows you are running.
It’s probably a good idea saving all your work first before hitting the CloseAll icon, even though you will still get the prompt asking if you want to save the work.
It also runs as like a command line with a switch that can exclude the applications being closed. For example, executing the following CloseAll command closes all applications except for Windows Explorer, Firefox, and Microsoft Word.
Of course, you can update the pinned shortcut on the taskbar with the -X exclude list to have a close-all-except-so-on-so icon instead.
Close All could be a very handy tool if you often are running over 20 applications at the same time and want them all closed instantly. It works just as if you were pressing the close button for each application.