: Bluetooth missing entirely from your taskbar, the inability to connect wireless devices, and an "Unknown Device" listing under the Other Devices tree in Device Manager. Method 1: Force Windows 11 to Use Built-In Drivers
Because Broadcom no longer serves retail end-user Bluetooth drivers directly on its portal, you must pull the compatible controller files from verified infrastructure pools. Method A: Microsoft Update Catalog (Recommended) bcm2045a0 driver windows 11
Download the official Bluetooth driver package provided by your computer manufacturer (such as HP, Lenovo, Dell, or ASUS) for your specific machine model. : Bluetooth missing entirely from your taskbar, the
Right-click in Device Manager and select Properties . Go to the Details tab. Click the Property dropdown menu and select Hardware Ids . Right-click in Device Manager and select Properties
Click and ignore the update warning to finish the installation. Method 3: Download WIDCOMM Bluetooth Software