Unknown HW in Other devices and working properly - Microsoft Q&A
: Many modern devices use custom services for features like ANC (Active Noise Canceling), touch controls, or specialized companion apps. Without the manufacturer's software, Windows cannot identify the service.
: This specific 128-bit Universally Unique Identifier is often associated with proprietary data services found in modern Bluetooth peripherals like high-end headphones (e.g., Sony WH-1000XM series) or specialized controllers. bthenum 931c7e8a-540f-4686-b798-e8df0a2ad9f7
When a Bluetooth device connects to a Windows PC, the system uses the (Bluetooth Enumerator) to identify its capabilities and services. The string of characters following "BTHENUM" serves as a digital fingerprint:
: If you see this ID listed under "Other Devices" or as "Bluetooth Peripheral Device" with a yellow exclamation mark, it means Windows has detected the service but doesn't have a matching driver to "talk" to it. Common Causes for the Error Unknown HW in Other devices and working properly
: Issues often arise when the primary Bluetooth adapter drivers (from Intel, Realtek, or Broadcom) are outdated, preventing the system from properly enumerating newer peripheral IDs.
The identifier is a unique Bluetooth hardware ID (UUID) typically encountered in Windows Device Manager. It indicates a specific proprietary service or peripheral device that the operating system recognizes as hardware but may lack the precise drivers to name or operate fully. Understanding the "BTHENUM" Identifier When a Bluetooth device connects to a Windows
: You may see this more frequently after upgrading to Windows 11 if the manufacturer hasn't yet provided updated driver definitions for their proprietary Bluetooth UUIDs. How to Resolve the "Unknown Peripheral" Issue
If this ID is cluttering your Device Manager or causing connectivity issues, follow these steps: