Use the solutions explained in this article if your Bluetooth keyboard is paired but not working on your Windows 11/10 PC. Disconnect and reconnect the Bluetooth Adapter Run Bluetooth Troubleshooter ...
Open the Windows Run by pushing the Windows + R buttons. Now type the following command in: msdt.exe -id DeviceDiagnostic.
When your Bluetooth mouse suddenly stops working and the entire Bluetooth functionality disappears from your PC, no toggle switch, no Bluetooth in Device Manager, it usually indicates a deeper issue ...