WdmCompanionFilter Service Defaults in Windows 10

WDM Companion Filter by Microsoft Corporation.

The WdmCompanionFilter service does not exist in:

Default Settings

Startup type: Manual
Display name:WdmCompanionFilter
Service name:WdmCompanionFilter
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WdmCompanionFilter

Default Behavior

WdmCompanionFilter is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If WdmCompanionFilter fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the WdmCompanionFilter service has failed to start due to the error.

Restore Default Startup Configuration of WdmCompanionFilter

1. Run the Command Prompt as an administrator.

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

sc config WdmCompanionFilter start= demand

3. Close the command window and restart the computer.

The WdmCompanionFilter service is using the WdmCompanionFilter.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 10 installation media.