Exchange 2013 migrated to Exchange 2016 - How do I remove Exchange 2013?

Hello,

I've been using this document to complete the migration from Exchange 2013 to Exchange 2016: http://markgossa.blogspot.com/2015/12/exchange-2013-to-2016-migration-part-1.html

All mailboxes including the Arbitration mailboxes have been moved to 2016.

The document however does not list the steps for properly removing Exchange 2013 components - it jumps straight to using Programs and Features to uninstall Exchange 2013.  

Knowing well that it might not work since the Exchange 2013 databases are still not removed, I thought I'd follow through with the documentation - but surely enough, the wizard complained that there were mailboxes, databases, etc.  (Exact message further down).

Can someone please furnish the proper steps to removing Exchange 2013 from this server.  

Thanks in advance.

Real-Timer

Error:
Uninstall can't continue. Errors:
This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes, Audit mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of all mailbox plans in this database, run the command Get-MailboxPlan. To get a list of archive mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Archive. To get a list of all public folder mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -PublicFolder. To get a list of all arbitration mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Arbitration. To get a list of all Audit mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -AuditLog. To disable a non-arbitration mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID>. To disable an archive mailbox so you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID> -Archive. To disable a public folder mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID> -PublicFolder. To disable a Audit mailbox so that you can delete the mailbox database, run the command Get-Mailbox -AuditLog | Disable-Mailbox. Arbitration mailboxes should be moved to another server; to do this, run the command New-MoveRequest <parameters>. If this is the last server in the organization, run the command Disable-Mailbox <Mailbox ID> -Arbitration -DisableLastArbitrationMailboxAllowed to disable the arbitration mailbox. Mailbox plans should be moved to another server; to do this, run the command Set-MailboxPlan <MailboxPlan ID> -Database <Database ID>. It was running the command 'Remove-MailboxDatabase 'CN=Staff1,CN=Databases,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=First Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=rbs-rad,DC=local' -whatif'.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.UnwillingToRemoveMailboxDatabase.aspx

Warning:
There are messages waiting in the following queues: "RBS-EXCHANGE\Shadow\3". If you proceed with the removal of Exchange Server, data loss may result.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.MessagesInQueue.aspx
realtimerAsked:
Who is Participating?
 
MAS EE MVEConnect With a Mentor Technical Department HeadCommented:
Hi,
Please use these command to check the system mailboxes,user mailboxes and archive.
System mailboxes.
Get-Mailbox -Server <Server2013> -Arbitration

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Archives.
Get-Mailbox -Server <Server2013> -Arbitration

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User mailboxes
Get-Mailbox -Server <Server2013> 

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To move user mailboxes use this command
Get-Mailbox -Server <Server2013> | New-MoveRequest -TargetDatabase -targetdatabase <newdatabasename>

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To move system mailboxes use this command
Get-Mailbox -Server <Server2013> -Arbitration | New-MoveRequest -TargetDatabase -targetdatabase <newdatabasename>

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To move archive
Get-Mailbox -Server <Server2013> -Archive | New-MoveRequest -TargetDatabase -targetdatabase <newdatabasename>

Open in new window


Thanks
MAS
1
 
realtimerAuthor Commented:
This was perfect.  Thank you so much!!
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