Check the section under "Advanced options"—many Bluetooth drivers are tucked away here. 2. Device Manager Reinstallation
If the driver is present but malfunctioning, you can force Windows to refresh it: Right-click the button and select Device Manager . Expand the Bluetooth section.
Because BTBU1 is often associated with older hardware, finding an "official" standalone installer can be difficult. Most users can resolve the issue using one of the following methods: 1. Windows Update (Recommended)
