The first four bytes (DWORD) of the Data section contains the Windows error code

I get this type of error on start up:

Windows cannot load the extensible counter DLL rdyboost. The first four bytes (DWORD) of the Data section contains the Windows error code.

The Open Procedure for service "BITS" in DLL "C:\Windows\System32\bitsperf.dll" failed. Performance data for this service will not be available. The first four bytes (DWORD) of the Data section contains the error code.

Any idea what to do about it? When i asked Microsoft what to do about my remaining error messages after 10 weeks of problems and a complete re-installation, they said "Don't look in the Error Log"! Reminds me of the joke about  how many MS engineers does it take to change a light bulb!

I know there is already a thread for this from November 2012, but it has never received any answer:

Question Info

Last updated November 13, 2019 Views 91,625 Applies to:

No  - I have a solution, although it does seem to be the equivalent of the "ostrich head in the sand" which is to disable the associated performance counters - however critically where as other solutions have suggested adding a Disable Performance Counters setting in the registry (which never worked for me), this one recommends downloading the tool exctrlst.exe from the Windows 2000 resource kit and doing it via the tool instead. Simply run the tool, scroll down through the list of performance counters that are enabled and uncheck the box for the problematic ones. This tool does work on Windows 8.1.

It can be downloaded from the following Microsoft URL at:

The blog that tipped me off to this can be found at technet, a "two minute drill" on disabling performance counters and exctrlst.exe at:

Hope it works for others. One note of warning, removing some errors seems to spread to other performance counters, so if you stop monitoring a couple of dlls, then another couple seem to pop up on the list a couple of days later.


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