LDDM Graphics Subsystem (DXGKrnl) Service Defaults in Windows 7
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 7 it won't be started if the user doesn't start it. If LDDM Graphics Subsystem fails to load or initialize, Windows 7 startup continues without error messages. The failure details are being written into Event Log.
Restore Default Startup Configuration of 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 C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.