The drivers are updated through Windows Update. They are available in the \Windows\System32\DriverStore\FileRepository folder. These drivers and their installation files are included in Windows. If you are installing USB drivers: You do not need to download USB device class drivers. For non-composite devices or a function of a composite device, use WinUSB (Winusb.sys).For composite devices, use USB Generic Parent Driver (Usbccgp.sys) that creates physical device objects (PDOs) for each function.Microsoft-provided drivers for USB-IF approved device classes.This topic lists the Microsoft-provided drivers for the supported USB device classes. If you are a customer experiencing USB problems, see Troubleshoot common USB problems