I recently was having problems with my WMI queries. Following some (bad) advice I rebuilt the repository. It didn’t solve my problem, and afterwards all the performance counter classes had disappeared. Win32_PerfRawData_* and Win32_PerfFormattedData_* were gone, reporting error 0x80041010 [“Invalid class”] (Instead of an error 0x80041010, MS says you might get error 0x80041002 [“Object could not be found”] or error 0x80041006 [“Insufficient memory”] when trying to connect to a nonexistent class.) All the rebuilding and troubleshooting and searching MOF files gave me nothing.
The answer? winmgmt /resyncperf rebuilds the performance counter classes in the repository. To be extra safe, winmgmt /clearadap clears the old data first.
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