Bthenum 931c7e8a-540f-4686-b798-e8df0a2ad9f7 May 2026

: 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 - Microsoft Q&A bthenum 931c7e8a-540f-4686-b798-e8df0a2ad9f7

: 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 you see this ID listed under

: 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. Without the manufacturer's software

If this ID is cluttering your Device Manager or causing connectivity issues, follow these steps: