Event ID - 20604

Event Id20604
SourceMicrosoftOperationsManager
DescriptionMOM failed to monitor memory usage of the MOM process
Event InformationCause:
If the WMI service is running on the managed computer and has not been shutdown recently, this might indicate that some WMI class used by MOM might be the cause.

Resolution:
Look in the alert details for the error condition that raised the alert. If the error code was 0x80041010, (WBEM_E_INVALID_CLASS) then run the following command from the command line of the managed computer: "wmiadap.exe /f". After this you might try restarting the MOM Service on the managed computer.
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