HiCan someone point me in the direction of a procedure to uninstall exchange 2010. Exchange 2010 is currently coexisting with 2003. I have moved all mailboxes back to Exchange 2003, deleted all arbitration mailboxes off the exchange 2010 box. When trying to uninstall I get the following error:Summary: 3 item(s). 2 succeeded, 1 failed.Elapsed time: 00:01:27 Mailbox Role PrerequisitesFailed Error:Uninstall cannot continue. Database 'Public Folder Database 2067579288': Public folder database "Public Folder Database 2067579288" is the default public folder database for the following mailbox database(s):Mailbox Database 1799449350. Before deleting the public folder database, assign a new default public folder database to the mailbox database(s).Recommended Action: http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.4&id=b6e3b32a-8848-46cb-9567-72288ac15f60 Elapsed Time: 00:01:20 Client Access Role PrerequisitesCompleted Elapsed Time: 00:00:03 Hub Transport Role PrerequisitesCompleted Elapsed Time: 00:00:03

See if this helps http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/d058717e-bf70-4449-91c2-fa00b47d415fIf you dont want to assing a new PF store , try runing this command Remove-PublicFolderDatabase "DBName" -RemoveLastAllowedRaj

Thanks for the response but that command returns the same error:[PS] C:\Windows\system32>Remove-PublicFolderDatabase "Public Folder Database 2067579288" -RemoveLastAllowedPublic folder database "Public Folder Database 2067579288" is the default public folder database for the following mailbox database(s):Mailbox Database 1799449350. Before deleting the public folder database, assign a new default public folder database to the mailbox database(s). + CategoryInfo : InvalidOperation: (Public Folder Database 2067579288:ADObjectId) [Remove-PublicFolderDat abase], InvalidOperationException + FullyQualifiedErrorId : 7688CDDB,Microsoft.Exchange.Management.SystemConfigurationTasks.RemovePublicFolderDataba seI don't want to affect my current Exchange 2003 installation at all, just want to get rid of exchange 2010.

Did you saw Amit's responce on the link that I provided.Also check this http://itowns.blogspot.com/2009/10/cant-uninstall-exchange-2010-rc-must.htmlRaj

Yes I did see Amit's response but that is about removing the arbitration mailboxes. I have already done that. I can't use the manual removal as it says that it will affect any currently installed exchange 2003 servers.

Delete the mailbox database before deleting the public folder database so there's no dependency.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Slawza" wrote in message news:58cda4d2-56dd-46e6-9ec7-5a3c646d1d08...Thanks for the response but that command returns the same error:[PS] C:\Windows\system32>Remove-PublicFolderDatabase "Public Folder Database 2067579288" -RemoveLastAllowedPublic folder database "Public Folder Database 2067579288" is the default public folder database for the following mailbox database(s):Mailbox Database 1799449350. Before deleting the public folder database, assign a new default public folder database to the mailbox database(s). + CategoryInfo : InvalidOperation: (Public Folder Database 2067579288:ADObjectId) [Remove-PublicFolderDat abase], InvalidOperationException + FullyQualifiedErrorId : 7688CDDB,Microsoft.Exchange.Management.SystemConfigurationTasks.RemovePublicFolderDataba seI don't want to affect my current Exchange 2003 installation at all, just want to get rid of exchange 2010. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi,The prerequisite checks performed by the mailbox role uninstall process prevent the removal of the public folder database if the database contains any public folder replicas, no matter what type they are. Please try to use he cmdlt below to check the replica, if there are more than one replica in the list,then we can simply remove the replica from the list, if not, then we have move the replica to other public folder database first and then delete it.Get-PublicFolderStatistics -Server <servername> | Get-PublicFolder | fl Name,Replicas,ParentPath Configure Public Folder Replicationhttp://technet.microsoft.com/en-us/library/bb691120.aspxRegards,Xiu

True, but the error reported was that the public folder store was asssigned as a default store on a mailbox store, not that it contained replicas.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Xiu Zhang - MSFT" wrote in message news:81e41b55-efff-42b6-a6a3-db7fbc7b14bb...Hi,The prerequisite checks performed by the mailbox role uninstall process prevent the removal of the public folder database if the database contains any public folder replicas, no matter what type they are. Please try to use he cmdlt below to check the replica, if there are more than one replica in the list,then we can simply remove the replica from the list, if not, then we have move the replica to other public folder database first and then delete it.Get-PublicFolderStatistics -Server <servername> | Get-PublicFolder | fl Name,Replicas,ParentPath Configure Public Folder Replicationhttp://technet.microsoft.com/en-us/library/bb691120.aspxRegards,Xiu Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

True, but the error reported was that the public folder store was asssigned as a default store on a mailbox store, not that it contained replicas.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Xiu Zhang - MSFT" wrote in message news:81e41b55-efff-42b6-a6a3-db7fbc7b14bb... Hi,The prerequisite checks performed by the mailbox role uninstall process prevent the removal of the public folder database if the database contains any public folder replicas, no matter what type they are. Please try to use he cmdlt below to check the replica, if there are more than one replica in the list,then we can simply remove the replica from the list, if not, then we have move the replica to other public folder database first and then delete it.Get-PublicFolderStatistics -Server <servername> | Get-PublicFolder | fl Name,Replicas,ParentPath Configure Public Folder Replicationhttp://technet.microsoft.com/en-us/library/bb691120.aspxRegards,Xiu Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." Eds right. The OP will probably then run into the replicas issue however. Oliver Moazzezi | Exchange MVP, MCSA:M, MCTS:Exchange 2010, BA (Hons) Anim | http://www.exchange2007.com | http://www.exchange2010.com | http://www.cobweb.com |

Hi Xiu I ran the command you said and the following was returned: [PS] C:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-PublicFolderStatistics -Server MCTDC06 | Get-PublicFolder | fl Name,Replicas,ParentPath Name : EX:/o=MCT/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)Replicas : {MCTDC01\First Storage Group\Public Folder Store (MCTDC01)}ParentPath : \NON_IPM_SUBTREE\SCHEDULE+ FREE BUSY Name : EX:/o=MCT/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)Replicas : {MCTDC01\First Storage Group\Public Folder Store (MCTDC01)}ParentPath : \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK Name : Internet NewsgroupsReplicas : {MCTDC01\First Storage Group\Public Folder Store (MCTDC01)}ParentPath : \

Hi, From the output, the replica is only on MCTDC01, it is on exchange 2010,is that true? Then I recommend you to add Exchange 2003 to the public folder replica list. Configure Public Folder Replication http://technet.microsoft.com/en-us/library/bb691120.aspx Regards, Xiu