LDDM Graphics Subsystem (DXGKrnl) Service Defaults in Windows 10

Controls the underlying video driver stacks to provide fully-featured display capabilities.

Default Settings

Startup type:Manual
Display name:LDDM Graphics Subsystem
Service name:DXGKrnl
Service type:kernel
Error control:ignore
Group:Video Init
Path:%SystemRoot%\System32\drivers\dxgkrnl.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DXGKrnl

Default Behavior

LDDM Graphics Subsystem is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If LDDM Graphics Subsystem fails to load or initialize, Windows 10 start up proceeds without warnings. However the error details are being logged.

Restore Default Startup Configuration for LDDM Graphics Subsystem

1. Run the Command Prompt as an administrator.

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

sc config DXGKrnl start= demand

3. Close the command window and restart the computer.

The DXGKrnl service is using the dxgkrnl.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.