Bluetooth Serial Communications Driver (BTHMODEM) Service Defaults in Windows 8

Bluetooth Communications Driver by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:Bluetooth Serial Communications Driver
Service name:BTHMODEM
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BTHMODEM

Default Behavior

The Bluetooth Serial Communications Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Bluetooth Serial Communications Driver fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the BTHMODEM service hasn't been started.

Restore Default Startup Configuration of Bluetooth Serial 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 C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.