When I attempt to uninstall our Exchange 2003 server, I get the following error msg: Error message when you try to remove Exchange Server from a mailbox server that no longer hosts mailboxes: "One or more users currently use a mailbox store on this server" But I can't any of these mailboxes on the Exchange Home Server column.

Check out: message when you try to remove Exchange Server from a mailbox server that no longer hosts mailboxes: "One or more users currently use a mailbox store on this server THis is typically because a mailbox was created on that server but never logged into.

I have reviewed Article ID: 924170, but still can not file and reference to the mailboxes on the 2003 box. Did you see the image i posted?

Use instructions on my blog to use blog to filter for the user that never logged into mailbox. 1. Start ADUC; click find. 2. Click custom search in drop down 3. Click Advanced tab 4. In LDAP field type: (msExchHomeServerName=/O=myexchangeorgname/ OU=myorgname/cn=Configuration/cn=Servers/cn=myexchangeserver) (objectClass=User) http://msexchangetips.blogspot.com/2008/04/exchange-one-or-more-users-currently.htmlJames Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

I ran you example and found no results. The 2003 is name Hammer. Here is the query: (msExchHomeServerName=/O=HernandoCounty/OU=First Administrative Group/cn=Configuration/cn=Servers/cn=Hammer) (objectClass=User)

Did you try all the solution steps here as well? You receive a "c1034a7f" error message when you delete a mailbox store: "One or more users currently use this mailbox store

To ensure you have the right syntaxt try this instead (objectclass=user)(msExchHomeServerName=*Hammer*) Also you need to close our your ADUC search because anytime your query is wrong and you fix it it still wont work you have to close out the search box and start over. James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Ok, I got a result of 11 users, but none have mailboxes. The only Exchange Tasks is "Remove Exchange Attributes".

Yup because they never logged into their mailboxes, yes remove the exchange attribs and you should be good.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Ok, I got a result of 11 users, but none have mailboxes. The only Exchange Tasks is "Remove Exchange Attributes". Remove em!

I removed the attributes and then the user account. They were old test accounts. But still got the same error message.

If you re-run the query no accounts show up now? Try restarting the information store and re-run the uninstall.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

I've rebooted the server and re-run the query with no results. Uninstall failed to run with same error message.

Did you try the ldp tool referenced in the article I linked?

Base Dn: DC=co,DC=hernando,DC=fl,DC=us Filter: (msExchHomeServerName=*Hammer*) Scope: Subtree ***Searching... ldap_search_s(ld, "DC=co,DC=hernando,DC=fl,DC=us", 2, "(msExchHomeServerName=*Hammer*) ", attrList, 0, &msg) Result <0>: (null) Matched DNs: Getting 0 entries:

Could there be references to that mail server in other AD domains? I.e. can you set it to another BASE DN?

ldap_search_s(ld, "CN=Configuration,DC=co,DC=hernando,DC=fl,DC=us", 2, "(msExchHomeServerName=*Hammer*) ", attrList, 0, &msg) Result <0>: (null) Matched DNs: Getting 0 entries: Same results

Can I delete the mailbox store?

Yeah just hard delete it in adsiedit, doesnt hurt. Go to start, run, adsiedit.msc, expand the configuration partition, services....find your hammer server, expand find the mailstore and right click delete. Then run the uninstall again.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Can I delete the mailbox store? If you are sure there is no mailboxes on there yes. However, so you have a pf store as well? If so, I would make sure all the replicas are removed from that server first It is supported to manually remove a 2003 server http://support.microsoft.com/kb/833396 However make sure you have covered everything: http://technet.microsoft.com/en-us/library/bb288905(v=exchg.80).aspx

Hi, How is the issue now? Please feel free to update here.Xiu Zhang TechNet Community Support

I was off over the weekend. But I tried the adsiedit option. But still cannot uninstall Exchange through Add-Remove. I've also diasabled the services and tried, failed too. Before I try to manually do it, are there any other ideas?

Hi Once you have deleted the server using ADSIedit you can shut it down. There is no need to continue to attempt to uninstall Exchange after it has been removed from AD. Steve

Is there a step-by-step kb article (ADSIedit) on the process? And how will that affect my Exch2007 server? Will all my enterprise options now be available?

Go into adsiedit, right click the server and delete. How does it affect your 2007 server? Well of course when you hard delete it doesn't delete any backlinks, however you can always re-home or fix them if you find any, no biggie. Just delete it. James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Please confirm: ADSIedit -> Configuration -> Services -> Microsoft Exchange -> Mydomain (HernandoCounty) -> Administrative Groups -> First Administrative Group - Servers (CN=HAMMER)

Yup, delete cn=hammer.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

That seems to have done the trick. Thanks for everyones help...