Windows Defender Network Stream Filter Driver - Windows 10 Service
Windows Defender Network Stream Filter by Microsoft Corporation.
This service exists in Windows 10 only.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | not exists | not exists | not exists | not exists |
| 1511 | not exists | not exists | not exists | not exists |
| 1607 | not exists | not exists | not exists | not exists |
| 1703 | not exists | not exists | not exists | not exists |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | not exists | not exists | not exists | not exists |
| 1809 | not exists | not exists | not exists | not exists |
| 1903 | not exists | not exists | not exists | not exists |
| 1909 | not exists | not exists | not exists | not exists |
| 2004 | not exists | not exists | not exists | not exists |
| 20H2 | not exists | not exists | not exists | not exists |
| 21H1 | not exists | not exists | not exists | not exists |
| 21H2 | not exists | not exists | not exists | not exists |
| 22H2 | not exists | not exists | not exists | not exists |
Default Properties
| Display name: | Windows Defender Network Stream Filter Driver |
| Service name: | wdnsfltr |
| Type: | kernel |
| Path: | %WinDir%\system32\drivers\wdnsfltr.sys |
| Error control: | normal |
| Group: | NDIS |
Default Behavior
The Windows Defender Network Stream Filter Driver service is a kernel mode driver. If Windows Defender Network Stream Filter Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the wdnsfltr service has failed to start.
Restore Default Startup Type of Windows Defender Network Stream Filter Driver
Automated Restore
1. Select your Windows 10 edition, and then click on the Download button below.
2. Save the RestoreWindowsDefenderNetworkStreamFilterDriverWindows10.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the wdnsfltr.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.