Desktops is FREE utlity which allows you organise your applications in between four multiple desktops, this is the first virtual desktop tool released my Microsoft.
Desktops uses separate windows desktop objects for each virtual desktop and easy switching in between them with easy shortcuts key you define at the time of launching the application.
If you have not defined any shortcuts for these virtual desktops then by default you can switch in between the desktop by pressing alt+1 for the first desktop, alt+2 for the second desktop and so on till the 4th desktop.