DFS Namespace Client Driver (Dfsc) Service Defaults in Windows 10

Client driver for access to DFS Namespaces.

Default Settings

Startup type:System
Display name:DFS Namespace Client Driver
Service name:Dfsc
Service type:filesys
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dfsc

Default Behavior

DFS Namespace Client Driver is a file system driver. In Windows 10 it is starting at Kernel initialization. If DFS Namespace Client 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 Dfsc service has failed to start due to the error.


DFS Namespace Client Driver cannot be started under any conditions, if the Mup service is disabled.

Restore Default Startup Configuration for DFS Namespace Client Driver

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_Dfsc_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The Dfsc service is using the dfsc.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.