Error When Uninstalling Exchange 2010 From Server

Thanks Ali,I spent a lot of time trying to remove an old exchange 2010 server.Your document was the only one that helped me do that.Thanks again for your time and effort on creating this post.

Error when uninstalling Exchange 2010 from server

I have to remove a public folder database and server from our exchange environment. This is an old exchange 2010 (A) server that holds some 200gb of obselete data which is not being replicated over to 2 (B and C) other newly built exchange 2010 PF servers. Can I use Exfolders to stop replication to this server? mailbox databases are pointed to server B. Here is my step by step:1. Stop replication to Server A. Ensure it completes. Ensure server B and C has the relevent PFs that is required for business by running the get- publicfolderreplicationreport script.2. Dismount the PF database on Server A. Allow sufficient time to ensure there are no errors or PF availability issues for end users.3. Uninstall Exchange 2010 binaries from Server A. Disjoin server from the domain. remove any remnants from ADSIedit if needed.

not sure what I did was right way of doing to fix the issue, after using MS guides to migrate public folders from 2010 to 2013, pubilc folders were working fine on 2013 and I can access these fine,but when i go via 2010 public folder console on exchange server it was still showing me all folders there as well, so what i did is deleted all folders that were showing on 2010 console, and then tried deleting public folder database ,now public folder database is deleted and i got public folders working on 2013.

The legacy offline address books can be removed from the organization when there are no more Exchange 2010 mailbox users. Exchange 2013 mailbox users will be using the new OAB created by Exchange 2013 setup.

I have migrated all mailboxes from 2010 to new exchange 2016 server. However, when querying Get-Mailboxstatistics -Server EX10, the mailboxes are still shown in 2010 databases. Can you please advise on this ?

Hello Paul.I migrated all my servers from Exchange 2010 to Exchange 2016. After validate everything, I decom my Exchange 2010 servers. But I forgot about the backup/restores. Now I need to install at least a Exchange 2010 again on the organization. Is it possible? I downloaded the Exchange 2010 SP3 on a server, installed all pre reqs and no failures or warnings were reported. But before I install it, I want a second opnion. For now, tks a lot Paul.

Paul,Thanks for the great article.After migrating to Ex13 and uninstalling CAS roles from all Ex10 servers I still have two CAS arrays left with no members in them. Is it safe to remove those?Thanks,Peter

User migration from 2010 to 2013 is completed and I am about to decommission 2010 servers (2 x MBX servers are physical, 2 x CAS/HT and 2 x UM are Virtual).I have a requirement to be able to restore to PST for the next million years from 2010 and trying to work out my options:1. Is it possible to decommission all of 2010 and if required later just stand up 1 multi role 2010 server and use PowerShell to export to PST ?Or2. Can I keep one of our current 2010 virtual servers (CAS) install MBX role on it and create a Recovery DB and just have it offline until required.

Download that Update Rollup to the server and reapply it, and then restart the Exchange server. Try to remove or reinstall the Exchange Server 2010 role again. In some cases reapplying the Update Rollup a second time is necessary to correct the error.

I've migrated all mailboxes to Office 365 and have disabled directory sync. Now I'm attempting to uninstall my on-prem Exchange 2010 SP3 RU 19 server and it is failing during the "Organization Preparation" stage with the following errors:

We have recently added a separate Exchange 2013 server to our network. I have been having some issues removing the 2010 install from our SBS 2011 box. Your description says it is for after you migrate to Office 365. Can these steps be using to uninstall ours even though we still have a local Exchange box?

After Exchange 2010 Removal from SBS 2011 my customer experienced loss of access to Remote Web Workplace. Accessing the page would produce a spinning loading screen in IE. Found repeated errors in the Aplication Event LOgSource: Microsoft-Windows-IIS-W3SVC-WPEvent ID: 2280Description: The Module DLL C:\Program Files\Microsoft\Exchange Server\V14\Bin\kerbauth.dll failed to load.

This site had a fix: -module-dll-kerbauth-dll-failed-to-load-the-data-is-the-error-the-module-dll-cprogram-filesmicrosoftexchange-serverv14binkerbauth-dll-failed-to-load-the-data-is-the-error/1. Open ApplicationHost.config file at this path C:\Windows\System32\inetsrv\config2. Find the entry for kerbauth.dll like following

Though we changed the pointing of all virtual directories internally & externally to new Exchange 2016 server, made changes in send connectors & also created receive connectors on new Exchange 2016 servers, How we can first remove the Exchange 2010 Hybrid Server from the environment before running the Hybrid Configuration Wizard on new Exchange 2016 Servers?

Not sure it makes a big difference when to run the HCW. I mean all that does is create/update the hybrid configuration object. You can do that before decom of 2010 with no impact, as far as I know. Also not sure there would be much impact the other way, but I always tended to update the object (it will choose to use the newer server by default when you do) then decom the old system after I knew there was no reference to it any more.

Hi, many thanks for this guide, I went through the 3 Parts, AD migration to new server, exchange and then got to the remove global catalogue and thought I would do some checks on the new server. Argh no mailboxes and no public folder content. The mail boxes were disconnected and I have reconnected all bar one which is not listed. The public folder was replicated some time ago and the replication from the new server removed. I have used a utility Systools to look at the edb files and both the missing mailbox is there and the publicfolders are in the public database but I see no way to get them assessible. I have a backup of the databases but am not convinced the issue is with the db files any idears appreciated. Current plan is to pay up for the utility move all the public folders to a mailbox and then use outlook to move them back to public folders, there is only a few thousand!

In your Exchange organization, you might be in the process of removing Exchange 2010. You have done the DAG removal and cleaned up the servers so that no mailboxes and arbitration mailboxes exist and then proceed to uninstall Exchange 2010 from the control panel only to be presented with the following error:

This allows you to remove all replicas from a given server after you have ensured that they are replicated to another server. This is useful when working to remove specific 2010 public folder databases.

Rhoderick I wish I would have found your article during our decommission of an Exch 2010 server. I don't recall the exact error we had during the decommission process but we did have trouble removing the public folder DB.

Hello,We are not using public folders in our exchange 2016 environment.. Do we need to use ADSIedit to remove the PF to remove the setting on each exchange 2016 database, or when the PF gets deleted it gets removed from there as well?and to confirm exchange 2016 would not be using the PF for anything? only exhcange 2003 used PF for free busy look ups etc?

Organization has moved all their mailboxes to the Exchange Online from On-Premise Exchange 2010 server. MX Record is cutover to office365 (inbound and outbound mail flow is moved to office365). Active Directory Synchronization is being used for Syncing the users to Azure Active Directory using Azure AD Connect.

You may have used Hybrid Configuration Wizard (HCW) or Third party Tools to migrate the mailboxes to the cloud or you may have moved to higher version of exchange. Most of the steps given in this article will remain the same. However, This article will be based on one Exchange 2010 server with all exchange roles on it without DAG and without HCW configuration. You can use this article as a guidance and create a plan for decommissioning exchange server as per your organization requirements.

Uninstall other software(s) from exchange server like Anti-Virus, Backup Software, Veritas backup exec agent, or any other third party tools to cleanup the meta-data and release the licenses (if any).

On Below query:Of course been told to ditch exchange and teach the users how to use PS, ADUC attrib, ADSIEdit (lol) >>>>> We have completely removed the Exchange 2010 Server for several customers and just using Active Directory Attributes Editor when creating new users or modifying existing users. Only three attributes needs to be updated in the Active Directory attributes editor 1) mail 2) mailnickname 3) ProxyAddress. In that case, IT Admin team should be able to update it or a PS script can be created for the same.

The current solution is O365 with Azure AD Connect for AD object sync. There is an on-prem exchange 2010 that we want to get rid of. We only want to keep Azure AD Connect for SSO and completely remove that. If security and DLs created through on-prem exchange will stay intact after uninstalling of exchange then is fine! thanks

No Problem Bren. Yes, you can keep it running for now or plan to decommission it completely and use ADSIEdit to manage mail attributes of users. I have worked with a lot of clients and decommissioned their Exchange 2010 On-Prem servers after migration to Office365. I understand its easier to manage the mail attributes when exchange server is in place. But its actually not too difficult to manage mail attributes using Attributes Editor in Active Directory.

In Exchange 2010, moving OAB generation server was quite easy. All you had to do is run Move-OfflineAddressBook cmdlet, and wait for AD to replicate. In Exchange 2013, Offline address book is now generated by a system mailbox. See blog post from Exchange Team here.