Kernel event ID 2 is logged when the MSFT_NetLbfoTeamNic class is called in Windows Server 2012 R2

This article provides a workaround for an issue that triggers kernel event ID 2 when the MSFT_NetLbfoTeamNic class is called in Windows Server 2012 R2.

Original KB number:   3087042


When Windows Server 2012 R2 is used with the NIC Teaming feature, and a third-party WMI provider is used to call the MSFT_NetLbfoTeamNic WMI class, the following event is logged:

Source: Kernel-EventTracing/Admin
Event ID: 2
Session "" failed to start with the following error: 0xC0000022

This article addresses only this specific error that occurs when NIC Teaming is being used. This error is not the fault of the third-party WMI provider. Additionally, this event may be logged for reasons that are not related to the NIC Teaming WMI provider.


This problem is not caused by the third-party WMI provider. This problem is being tracked for consideration in a future version of Windows Server.

The Windows Server 2012 R2 MSFT_NetLbfoTeamNic WMI class uses the iNetCfg interface. The iNetCfg interface is associated with the NetCfgTrace kernel logging provider, which is automatically enabled by Windows. Trace data is automatically saved to the C:\Windows\inf\netcfgx.0.etl file. All WMI providers run under the context of the WMIPRVSE process, which in turn runs under the NETWORK SERVICE account. However, if a WMI provider calls the MSFT_NetLbfoTeamNic class, the NETWORK SERVICE account does not have authority to write trace data to this file.


If the scenario that's described in the "Symptoms" section triggers the kernel event ID 2 error, the error is harmless and can be safely ignored.

If you want to prevent this error from being logged, open an administrative command prompt, and then run the following commands:

Takeown /f c:\windows\inf  
icacls c:\windows\inf /grant "NT AUTHORITY\NETWORK SERVICE":"(OI)(CI)(F)"  
icacls c:\windows\inf\netcfgx.0.etl /grant "NT AUTHORITY\NETWORK SERVICE":F  
icacls c:\windows\inf\netcfgx.1.etl /grant "NT AUTHORITY\NETWORK SERVICE":F

These commands grant the necessary file permissions to prevent the error logging in this scenario.

You may also want to reset the owner of C:\Windows\inf back to the NT SERVICE\TrustedInstaller account (the default setting). To do this, follow these steps:

  1. In Windows Explorer, navigate to C:\Windows, right-click the C:\Windows\INF directory, and then select Properties. On the Security tab, click Advanced.

  2. Next to Owner, click Change.

  3. Click Location, and then select the local computer (you may have to scroll up if you've joined a domain).

  4. In the Object name, enter NT SERVICE\TrustedInstaller, select Check Names, and then click OK. Finally, run the icacls command to make sure that the NETWORK SERVICE account is set for inheritance, as in the following example:

    C:\>icacls c:\windows\inf