With a desktop, it might not be enough for you to work with multiple windows at the same program, or you do not want others to see the program you're using on your desktop ... That will be solved easily via Dexpot, a virtual desktop program for Windows creates helps you more easily manipulate the program window dense. 

With Dexpot you can create up to 20 virtual desktop and can be easily moved between virtual desktops. New default settings will give you the Dexpot Virtual Desktop 4, so all that's needed for you to sort each individual program for your desktop so you can easily manipulate it.