Right-click Start → Device Manager .
Right-click it and select Disable .
Expand Audio inputs and outputs .
Open Control Panel → Hardware and Sound → Sound (or run mmsys.cpl ). windows 10 disable hands free telephony
Disable any entry named Bluetooth Headset Hands-Free Microphone or similar. Right-click Start → Device Manager
Click OK . Reconnect your Bluetooth headset or restart Windows Audio service. windows 10 disable hands free telephony