Open the virtual COM port in a terminal application. EDBG User Guide - User guide containing more information about the on-board Embedded Debugger. As complete example projects, Virtual Com Port and install Atmel-USB-Installer-7. The EDBG debugger, a Data Gateway Interface DGI.
On the off chance that it was a driver or registry problem I also tried this on a different Windows 10 computer. The Atmel EDBG will enumerate as a composite USB device with separate interfaces for each function.
