Bluetooth Modem Communications Driver (BTHMODEM) Service Defaults in Windows 10

Bluetooth Communications Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Bluetooth Modem Communications Driver
Service name:BTHMODEM
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\bthmodem.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BTHMODEM

Default Behavior

Bluetooth Modem Communications Driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Bluetooth Modem Communications 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 BTHMODEM service has failed to start due to the error.

Restore Default Startup Configuration for Bluetooth Modem Communications 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 BTHMODEM start= demand

3. Close the command window and restart the computer.

The BTHMODEM service is using the bthmodem.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.