Windows Container Name Virtualization - Windows 10 Service
Virtualizes file system names for processes running within Windows Containers.
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 | Automatic | Automatic | Automatic | Automatic |
| 1703 | Manual | Manual | Manual | Manual |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | Manual | Manual | Manual | Manual |
| 1809 | Manual | Manual | Manual | Manual |
| 1903 | Manual | Manual | Manual | Manual |
| 1909 | Manual | Manual | Manual | Manual |
| 2004 | Manual | Manual | Manual | Manual |
| 20H2 | Manual | Manual | Manual | Manual |
| 21H1 | Manual | Manual | Manual | Manual |
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | Windows Container Name Virtualization |
| Service name: | wcnfs |
| Type: | filesys |
| Path: | %WinDir%\system32\drivers\wcnfs.sys |
| Error control: | normal |
| Group: | FSFilter Top |
Default Behavior
The Windows Container Name Virtualization service is a file system driver. If Windows Container Name Virtualization fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the wcnfs service has failed to start.
Dependencies
Windows Container Name Virtualization is unable to start, if the FltMgr service is stopped or disabled.
Restore Default Startup Type of Windows Container Name Virtualization
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreWindowsContainerNameVirtualizationWindows10.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 wcnfs.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.