-->. Closed thread: On a certain audio device that wasn't working in their Device Manager under their Universal Serial Bus Controllers - it reads:.Unknown USB Device (Device Descriptor Request Failed). So they were told the 2nd option to fix this problem is: M ethod 2: Disable and re-enable all the Universal Serial Bus controllers (USB) controllers. Microsoft-provided in-box driver (Usbser.sys) for your Communications and CDC Control device. In Windows 10, the driver has been rewritten by using the Kernel-Mode Driver Framework that improves the overall stability of the driver. Improved PnP and power management by the driver (such as, handling surprise removal).


Usb Device Drivers
This topics in this section describe the class drivers, generic client driver, and the parent composite driver that are provided by Microsoft.
Microsoft-provided USB drivers for controllers and hubs
Microsoft provides these set of drivers:
- For USB host controllers and hubs. For more information, see USB host-side drivers in Windows. You can develop a custom host controller driver that communicates with the USB host controller extension (UCX) driver. For more information, see Developing Windows drivers for USB host controllers.
- For handling common function logic for USB devices. For more information, see USB device-side drivers in Windows.
- For supporting Type-C connectors. For more information, see USB connector manager class extension (UcmCx).
Other Microsoft-provided USB drivers
| Device setup class | Microsoft-provided driver and INF | Windows support | Description |
|---|---|---|---|
| USB | Usbccgp.sys Usb.inf | Windows 8.1 Windows 8 Windows 7 Windows Vista Windows XP | Usbccgp.sys is a parent driver for composite devices that supports multiple functions. For more information, see USB Generic Parent Driver (Usbccgp.sys). |
| Biometric | WudfUsbBID.dll WudfUsbBIDAdvanced.inf | Windows 8.1 Windows 8 | Microsoft supports USB biometric devices (fingerprint readers) by providing the Windows Biometric Framework. See the Windows Biometric Framework. |
| Media Transfer Protocol Devices | Wpdusb.sys (Obsolete) | Windows Server 2008 Windows Vista Windows Server 2003 Windows XP | Note Starting in Windows 7, Microsoft has replaced the kernel mode component of the Windows Vista USB driver stack (Wpdusb.sys) for Windows Portable Devices (WPD) with the generic Winusb.sys. Microsoft provides the Wpdusb.sys driver to manage portable devices that support the Media Transfer Protocol. See WPD Design Guide. |
| USBDevice | Winusb.sys Winusb.inf | Windows 8.1 Windows 8 Windows 7 Windows Vista Windows XP with Service Pack 2 (SP2) | Winusb.sys can be used as the USB device's function driver instead of implementing a driver. See WinUSB. |
Microsoft-provided USB device class drivers

Microsoft provides drivers for several USB device classes approved by USB-IF. These drivers and their installation files are included in Windows. They are available in the WindowsSystem32DriverStoreFileRepository folder.
See, USB device class drivers included in Windows.
Related topics
Usb Usb Devices Driver Adapter
Universal Serial Bus (USB)
USB Driver Development Guide
