Performance counters are not working or missing in PerfMon

11/29/2018 10:36 PM

6/8/2026 3:53 PM

This article describes the following issues with performance counters when they are not working properly or missing:

• Invalid class errors are displayed.
• Category does not exist errors
• WMI or PerfMon counters show as down even when they are up.

To see a video on recovering performance counters that are not working or missing in PerfMon, see Recover performance counters that are not working or missing in PerfMon - video .

Server Application Monitor

Windows Performance counters are not working or missing

• Take snapshots / backups of server.
• Verify that the counters are available on Performance Monitor. If not, you would need to add these missing counters.
• Rebuild the performance counters:

1. Open a command prompt as an administrator on the target server and enter the following commands:

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cd %windir%\system32\

lodctr /R

cd %windir%\sysWOW64\

lodctr /R

Note: These commands will re-synchronize the counters and does not have an effect on the performance of the machine.

2. Open regedit and go the following registry key:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfProc\Performance
3. Search for Disable Performance Counters and make sure that the value is not 1. You can either change the value to 0 or delete the entry.
   Note: Create a backup of the entry and contact your system administrator before making changes to the registry.
4. Restart the Windows Management Instrumentation service.

If the above procedure fails, manually rebuild the performance counter values and then reboot your machine.

For WMI, follow this article WMI: Rebuilding the WMI Repository 

Follow the instructions in this THWACK post if you are working with a Cold Fusion server.
If these procedures fail, please contact Microsoft in order to resolve the issue with the server.