For many users, they only know if their computers are running Windows Vista, XP, 2000 or NT etc. (i.e. the major version).
Althought there are many ways to determine the version of Windows in use, it would be handy to identify the complete Windows version (including build number, service pack level) in use at a glance especially for advance users or IT support staff.
In Windows, there is a Registry setting to display the version of your Windows at the lower right-hand corner of the Desktop. See this picture:

To enable this setting, you can simply download the Registry file I have prepared for you:
http://www.geekappeal.com/LinkClick.aspx?fileticket=sU8UTGwCrT8%3d&tabid=58&mid=371.
Basically, it is a text file with a .reg extension. If you are comfortable to edit the Windows Registry, you can add/edit this setting directly.
Here is the content of the file:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Control Panel\Desktop]
"PaintDesktopVersion"=dword:00000001
To undo the change, you can just change the dword version from 1 (dword:00000001) to 0 (dword:00000000).
