Microsoft Exchange Server 2016 Cumulative Update 12 Unattended Setup

Copying Files...
File copy complete.  Setup will now collect additional information needed for installation.

     Languages
     Mailbox role: Transport service
     Mailbox role: Client Access service
     Mailbox role: Unified Messaging service
     Mailbox role: Mailbox service
     Mailbox role: Front End Transport service
     Mailbox role: Client Access Front End service

Performing Microsoft Exchange Server Prerequisite Check

 Configuring Prerequisites ... COMPLETED
 Prerequisite Analysis

The Exchange Server setup operation didn't complete.  More details can be found in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.