The Virtual Desktop Manager for Windows creates 4 desktops you can run different programs on and switch between.
Perfect for folks without a dual-monitor setup and not enough screen and taskbar real estate, the Virtual Desktop Manager is a free Windows PowerToy from Windows. After you install, right click on the taskbar, click toolbars, and then click "Desktop Manager." From there manage your three new desktops. Free, Windows only.
Virtual Desktop Manager (3rd from bottom) [Microsoft PowerToys]