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Windows is correctly recognizing the device as a USB Mass Storage Device (USB class 08h). That means the hardware is presenting itself to the system as a storage device, not as a Bluetooth radio. Windows will only load the mass‑storage driver (Usbstor.sys) for it, and it will never appear under Bluetooth in Device Manager or work as a Bluetooth adapter.
The .mp3 files visible on the drive are just data stored on that USB storage; they are not Bluetooth drivers and will not change how Windows identifies the hardware.
Because the device’s USB class is Mass Storage rather than a Bluetooth radio, it cannot be used as a Bluetooth adapter in Windows 10. To add Bluetooth to the PC, a different USB dongle is required—one that enumerates as a Bluetooth device and whose manufacturer provides appropriate Bluetooth drivers if Windows does not install them automatically.
If a genuine Bluetooth USB adapter is obtained and Windows 10 does not install it automatically, Bluetooth troubleshooting steps such as updating or reinstalling the Bluetooth driver via Device Manager can then be used.
References:
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