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Exchange 2016 – CU3 Event 7031

One of issues that may appear after you install Exchange 2016 CU3 on Windows 2012R2 “Update SP KB4022720”.

After you reboot the server you may receive event error The Microsoft Exchange Diagnostics service terminated unexpectedly:


You should go through the following steps:

  • Delete both keys from Registry ExchangeDiagnosticsDailyPerformanceLog & ExchangeDiagnosticsPerformanceLog .
  • Ensure Template is available on below location :HKLM\Software\Microsoft\PLA\Templates
  • Delete Counter from below path :Perfmon ->DataCollector->User Define -> Delete ExchangeDiagnosticsDailyPerformanceLog counter.
  • Restart Server & Check.

Ratish Nair

Microsoft MVP | Office Servers and Services

Team @MSExchangeGuru


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