Dear Grace Design Customers,
With the arrival of Windows 10 Creators Update, Windows 10 now has built in USB Audio Class 2 support. Our USB2 playback devices like the m9xx/m900, m920, and m903 support the built in Windows driver without any additional drivers. If you've installed the XMOS driver and it is not functioning, please uninstall the XMOS driver and allow Windows to use the built in driver.
Please contact email@example.com if you have any questions.