Some laptops offer a hardware button that can turn off WiFi and Bluetooth, and you will not be able to turn it on from Windows Settings. So check if that’s the case, and turn on the hardware ...

Restart your PC and check the Bluetooth “Add a device” notification is gone now. Read: How to turn off or disable Bluetooth in Windows. Alternatively, you can try reinstalling the Bluetooth ...

You can even turn on a feature called Dynamic Lock that locks the computer when your phone is out of Bluetooth range. Your computer's Bluetooth might be turned off by default, so if you want to ...