Early versions of Windows 8 had compatibility issues with their device drivers and many USB DACs (including DragonFly). If you are running Windows 8, we suggest that you do the following: Make sure your OS has all of the latest updates and service packs installed. Once all OS updates have been installed, check that all hardware device drivers are up to date and compatible with the latest version of Windows 8. There are no reported audio issues with Windows 8.1.