1 : Upgrading from Exchange 2013 CU1 to CU2
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"Unable to remove product with code 4934d1ea-be46-48b1-8847-f1af20e892c1.
Fatal error during installation. Error code is 1603. Last error reported by the MSI package is 'Service 'Tracing Service for Search in Exchange ' (SearchExchangeTracing) could not be stopped. Verify that you have the correct permissions to stop system services.'."
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