HI Dbarton, I am an employee from Jungo Connectivity Ltd. the producer of WinDriver. WinDriver is a driver development toolkit for custom USB/PCI drivers, it is architectured to install 2 drivers for one device WinDriver kernel driver and the device specific entry. Which not always are close in the device manager. WinDriver is used by many USB/PCI device manufacturers, If you have installed WinDriver with a USB/PCI device then it is necessary, you may contact the hardware manufacturer for further support. For testing I recommend just disabling WinDriver and see if a recently PCI/USB device stops working. Best Regards, / Mit freundlichen Grüßen