To have access to the target serial console output, on Windows, a driver is needed.
Use USBView to determinate which USB to serial driver is the right one for the target.
In case the USB manufacturer of the target is 0x0409: "Silicon Labs" download the driver from https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers
In case the USB manufacturer is 0x0409: "FTDI" download the driver form http://www.ftdichip.com/Drivers/CDM/CDM21228_Setup.zip