Chris Bradshaw • 3/3/2025

Exchange 2016 CU22 Upgrade fails

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This article details a specific error encountered during an Exchange Server 2016 CU22 upgrade, where setup fails after file copy. It describes the symptoms, including registry key errors and a small ISO file size, diagnoses the cause as a corrupted download, and provides the solution of re-downloading the update ISO.

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#Powershell #Windows Server #Exchange Server
Exchange 2016 CU22 Upgrade fails

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