RMS Shared Identity user FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 not found while installing SP1 for Exchange 2010

2017-12-08T16:12:53+00:00 August 26th, 2011|Exchange|

While installing Service Pack 1 on an Exchange UM server the following error was received:

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Solution:

Run Setup.com /PrepareAD from the SP1 source files to create the RMS Shared Identity User