Bluetooth Low Energy Driver (BthLEEnum) Service Defaults in Windows 10

Legacy Bluetooth LE Bus Enumerator by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Bluetooth Low Energy Driver
Service name:BthLEEnum
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthLEEnum

Default Behavior

Bluetooth Low Energy 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 Low Energy 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 BthLEEnum service has failed to start due to the error.

Restore Default Startup Configuration for Bluetooth Low Energy 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 BthLEEnum start= demand

3. Close the command window and restart the computer.

The BthLEEnum service is using the Microsoft.Bluetooth.Legacy.LEEnumerator.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.