To remove Saffire MixControl from your Windows 10 PC, click the Windows icon and search for "Add or Remove Programs", or simply launch the "Program and Features" utility from Control Panel when running (Windows 8 or below, also accessible in Windows 10):

Once this is launched, you should locate Saffire MixControl in the list, click on it, and select Uninstall from menu bar. Once you have followed the on screen instructions and uninstalled Saffire Mix Control from your system, you should restart your computer.