Usb\class_00&subclass_00 ((install)) (FREE 2025)

If you see this ID in the Windows Device Manager under "Other Devices" or with a yellow exclamation mark, it usually means Windows has detected the hardware but cannot find a specific driver to match its sub-functions. Common scenarios include: Defined Class Codes | USB-IF

If you see this string in your Device Manager, it often appears under "Unknown Device" or as a "USB Composite Device". This happens for several reasons: USB device classes - IAmAProgrammer - 博客园 usb\class_00&subclass_00

; Match USB device with class 00, subclass 00 [Manufacturer] %MfgName%=MyDevice, NTamd64 If you see this ID in the Windows

// Example: find devices with class 00, subclass 00 GUID guid = GUID_DEVCLASS_UNKNOWN; // or use GUID_DEVINTERFACE_USB_DEVICE HDEVINFO devInfo = SetupDiGetClassDevs(NULL, "USB", NULL, DIGCF_PRESENT | DIGCF_ALLCLASSES); Match USB device with class 00

In the USB specification, functionality is defined by a "triple" consisting of , SubClass , and Protocol .