Thank you this fixed it! I am going to post the info here in case that link goes away one day.
Diagnosis:
Go to WMI Control in Computer Management under "Services and Applications" and select "More Actions" -> Properties, it displays the following:-
Failed to initialize all required WMI classes.
Win32_Processor: WMI: Invalid class
Win32_WMISetting: WMI: Invalid class
Security information: Successful
Win32_OperatingSystem: WMI Invalid class
Solution steps:
Run these commands given below from Admin command prompt (run as administrator) to reset WMI components which should not be harm other Windows services or components.
From command prompt navigate to C:\windows\system32\wbem
* note (orig line did not work so I edited it and removed the > from the string: C:\>windows\system32\wbem)
regsvr32 /s %systemroot%\system32\scecli.dll
regsvr32 /s %systemroot%\system32\userenv.dll
regsvr32 cimwin32.dll
mofcomp cimwin32.mof
mofcomp cimwin32.mfl
mofcomp rsop.mof
mofcomp rsop.mfl
for /f %s in ('dir /b /s *.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
regsvr32 wmisvc.dll
wmiprvse /regserver
/end of steps
I did not even have to reboot and DB manager works again!
