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:
Windows 10 Home 1507Manual
Windows 10 Pro 1507Manual
Windows 10 Education 1507Manual
Windows 10 Enterprise 1507Manual
Windows 10 Home 1511Manual
Windows 10 Pro 1511Manual
Windows 10 Education 1511Manual
Windows 10 Enterprise 1511Manual
Windows 10 Home 1607Manual
Windows 10 Pro 1607Manual
Windows 10 Education 1607Manual
Windows 10 Enterprise 1607Manual
Windows 10 Home 1703Manual
Windows 10 Pro 1703Manual
Windows 10 Education 1703Manual
Windows 10 Enterprise 1703Manual
Windows 10 Home 1709Manual
Windows 10 Pro 1709Manual
Windows 10 Education 1709Manual
Windows 10 Enterprise 1709Manual
Windows 10 Home 1803System
Windows 10 Pro 1803System
Windows 10 Education 1803System
Windows 10 Enterprise 1803System
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. It is starting only if the user, an application or another service starts it in Windows 10 Home 1507, Windows 10 Pro 1507, Windows 10 Education 1507, Windows 10 Enterprise 1507, Windows 10 Home 1511, Windows 10 Pro 1511, Windows 10 Education 1511, Windows 10 Enterprise 1511, Windows 10 Home 1607, Windows 10 Pro 1607, Windows 10 Education 1607, Windows 10 Enterprise 1607, Windows 10 Home 1703, Windows 10 Pro 1703, Windows 10 Education 1703, Windows 10 Enterprise 1703, Windows 10 Home 1709, Windows 10 Pro 1709, Windows 10 Education 1709, Windows 10 Enterprise 1709. This service is starting at Kernel initialization in 1803 Home, 1803 Pro, 1803 Education, 1803 Enterprise. 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. Depending on the version of your operating system, copy the commands below, paste them into the command window and press ENTER.

For Windows 10 1507 Home, Windows 10 1507 Pro, Windows 10 1507 Education, Windows 10 1507 Enterprise, Windows 10 1511 Home, Windows 10 1511 Pro, Windows 10 1511 Education, Windows 10 1511 Enterprise, Windows 10 1607 Home, Windows 10 1607 Pro, Windows 10 1607 Education, Windows 10 1607 Enterprise, Windows 10 1703 Home, Windows 10 1703 Pro, Windows 10 1703 Education, Windows 10 1703 Enterprise, Windows 10 1709 Home, Windows 10 1709 Pro, Windows 10 1709 Education, Windows 10 1709 Enterprise:
sc config DXGKrnl start= demand

For Windows 10 1803 Home, Windows 10 1803 Pro, Windows 10 1803 Education, Windows 10 1803 Enterprise:
sc config DXGKrnl start= system
sc start DXGKrnl

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.