Hi, We found a systems in non client and below errors were found in ccmexec.log The 'Certificate Store' is empty in the registry, using default store name 'MY'. Failed to open to WMI namespace '\\.\root\CCM\Events' (8004100a) Failed to open to WMI namespace '\\.\root\ccm' (8004100a) CCMDoCertificateMaintenance() failed (0x8004100a). Failed to open to WMI namespace '\\.\root\CCM\Events' (8004100a) CCMDoCertificateMaintenance() raised CCM_ServiceHost_CertificateOperationsFailure status event. Loading service settings. Failed to open to WMI namespace '\\.\root\ccm\Policy\Machine' (8004100a) Error loading service settings. Code 0x8004100a Phase 0 initialization failed (0x8004100a). Service initialization failed (0x8004100a). Shutting down CCMEXEC.. UninitCommandExec failed (0x800401fb). Please provide a solution. Regards, Boopathi S

try running this WMI fix batch file :- open notepad and save the file as wmifix.bat ===================== net stop winmgmt /y c: cd %systemroot%\system32\wbem if exist %systemroot%\system32\wbem\repository.old rmdir /s /q repository.old rename %systemroot%\system32\wbem\repository repository.old for /f %%s in ('dir /b *.dll') do regsvr32 /s %%s for /f %%s in ('dir /b *.mof') do mofcomp %%s for /f %%s in ('dir /b *.mfl') do mofcomp %%s net start winmgmt wmiprvse /regserver net stop winmgmt /y c: cd %systemroot%\system32\wbem if exist %systemroot%\system32\wbem\repository.old rmdir /s /q repository.old rename %systemroot%\system32\wbem\repository repository.old regsvr32 /s %systemroot%\system32\scecli.dll regsvr32 /s %systemroot%\system32\userenv.dll mofcomp cimwin32.mof mofcomp cimwin32.mfl mofcomp rsop.mof mofcomp rsop.mfl for /f %%s in ('dir /b *.dll') do regsvr32 /s %%s for /f %%s in ('dir /b *.mof') do mofcomp %%s for /f %%s in ('dir /b *.mfl') do mofcomp %%s %systemroot%\system32\wbem\winmgmt /clearadap %systemroot%\system32\wbem\winmgmt /kill %systemroot%\system32\wbem\winmgmt /unregserver %systemroot%\system32\wbem\winmgmt /regserver %systemroot%\system32\wbem\winmgmt /resyncperf ===================== restart the sms host service, the client will try a repair automatically. Let me know how it went.

This exactly was the error in our environment and the below link is exactly what i did to get it back. http://trevorsullivan.net/2009/11/06/wmi-repository-corruption-sccm-client-fix/ Check this and let me know. Thanks Arvind

What about to repair the WMI? WMI Troubleshooting TipsSabrina TechNet Community Support

This will give you enough info abt WMI and its issue and the fixes for it. http://technet.microsoft.com/en-us/library/ee692772.aspx Let me know if this worked. Thanks Arvind

Error 8004100A translates to: WBEM_E_CRITICAL_ERROR 2147749898 0x8004100A Internal, critical, and unexpected error occurred. Report theerror to Microsoft Technical Support. I would try a wbemtest to see if the problem is with WMI as a whole or just CCM related classes (as the log above only shows errors with CCM related classes). To do this, run an elevated "wbemtest.exe" on the affected machineClick on ConnectUnder namespace, ensure you have "root\cimv2" and click on Connect.This should take you back to the previous screen. Click on Enum Classes and OK on the Superclass Info windowOn the new window that appears, locate and double click Win32_USBDevice.Finally, on the new window that appears, click on instances. If you managed to do all of the steps above without getting any errors, the "main part of WMI" seems fine and I would say the problem was that the SCCM client installation did not complete successfully and didn't register the WMI classes. If that's the case, I would first try to uninstall the SCCM client and try reinstalling it again. If you had errors whilst doing the wbemtest or reinstalling the SCCM client did not work, then I would say it looks more like the whole WMI might be corrupt you need to repair the WMI repository using the instructions provided by ArvindBS Hope this helps!

This exactly was the error in our environment and the below link is exactly what i did to get it back. http://trevorsullivan.net/2009/11/06/wmi-repository-corruption-sccm-client-fix/ Check this and let me know. Thanks Arvind At least three other threads with Client issues and you quote the WMI repair link and mark as answer. Wouldn't a test to see if root\CIMV2 is accessible using wbemtest be more appropriate? followed by a connection attempt to the root\CCM namespace? Surely if CIMV2 is accessible a Client Repair would be a more beneficial first step? If you told someone to blow away their WMI repository and they ommited to say the Client was on their Site server, then you'd most likely be looking at a site repair, or maybe the Clients is on a member server running an app that does store data in WMI or leans on it heavily, other products will lose a chunk of their world. WMI repository is a very last step not the first.

Do you know how to use wbemtest? http://technet.microsoft.com/en-us/library/cc781653(v=ws.10).aspx If you get results back from wbemtest connecting to root\cimv2 (select enum classes, select recursive, select ok), then most likely its not corrupted, if this is the case try initiating a ConfigMgr Client repair and see if root\ccm becomes accessible again using the log you got the paste above from or wbemtest