Microsoft Bluetooth A2dp driver (BthA2dp) Service Defaults in Windows 10

Bluetooth A2DP Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft Bluetooth A2dp driver
Service name:BthA2dp
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\BthA2dp.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthA2dp

Default Behavior

Microsoft Bluetooth A2dp driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Microsoft Bluetooth A2dp driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the BthA2dp service has failed to start due to the error.

Restore Default Startup Configuration for Microsoft Bluetooth A2dp driver

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config BthA2dp start= demand

3. Close the command window and restart the computer.

The BthA2dp service is using the BthA2dp.sys file that is located in the %WinDir%\System32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.