Check the section under "Advanced options"—many Bluetooth drivers are tucked away here. 2. Device Manager Reinstallation
Restart your computer. Windows will automatically attempt to reinstall the driver upon reboot. 3. Manufacturer Support Sites btbu1 driver
Обновление драйверов Bluetooth в Windows btbu1 driver
Right-click your Bluetooth adapter (it may be listed as BTBU1 or a generic equivalent) and select . btbu1 driver
While many BTBU1-based devices were originally designed for Windows 7 or 8, they generally still work on Windows 10 and 11 using compatibility mode or generic Microsoft drivers. However, as Microsoft ended support for Windows 10 in late 2025, users on older hardware may find that newer Bluetooth features (like LE Audio) are not supported by the aging BTBU1 architecture. Safety Warning