SDF Reflector - Windows 11 Service
This service exists in Windows 11 only.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
| 23H2 | Manual | Manual | Manual | Manual |
| 24H2 | not exists | not exists | not exists | not exists |
Default Properties
| Display name: | SDF Reflector |
| Service name: | SDFRd |
| Type: | kernel |
| Path: | %WinDir%\System32\drivers\SDFRd.sys |
| Error control: | normal |
Default Behavior
The SDF Reflector service is a kernel mode driver. If SDF Reflector fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the SDFRd service has failed to start.
Restore Default Startup Type for SDF Reflector
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreSDFReflectorWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the SDFRd.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 11 installation media.