Hello, I found this similar thread, that customer resolve the problem by this way: kill the InformationStore entry in AD with ADSI Edit, click with a right klick on [Servername] and new->object. then you take the msExchInformationStore class. You can know more detail from this thread,hope it can give you some hlep: failed uninstall Exchange 2007 after Migration to EX2010 [ERROR] The operation could not be performed because object 'InformationStore' could not be found on domain controller 'dc1.domain.local' http://social.technet.microsoft.com/Forums/en/exchangesvrmigration/thread/4c544967-0585-4049-b944-c9f991f7d040 Thanks, Evan Evan Liu TechNet Community Support

Hello All, I was removing an Exchange 2007 sever and I ran into a weird error. I did some searching, but couldn't find any answers pertaining to the answer. I pasted the error below. It seems pretty straight forward and the object InformationStore was not found, but how the heck do you fix that? Summary: 5 item(s). 0 succeeded, 1 failed. Elapsed time: 00:00:30 Mailbox Role Failed Error: The operation could not be performed because object 'InformationStore' could not be found on domain controller 'BMAI-SVR01.benefitsthatfit.com'. Elapsed Time: 00:00:30 Client Access Role Cancelled Thanks in advance!

Hello, I found this similar thread, that customer resolve the problem by this way: kill the InformationStore entry in AD with ADSI Edit, click with a right klick on [Servername] and new->object. then you take the msExchInformationStore class. You can know more detail from this thread,hope it can give you some hlep: failed uninstall Exchange 2007 after Migration to EX2010 [ERROR] The operation could not be performed because object 'InformationStore' could not be found on domain controller 'dc1.domain.local' http://social.technet.microsoft.com/Forums/en/exchangesvrmigration/thread/4c544967-0585-4049-b944-c9f991f7d040 Thanks, Evan Evan Liu TechNet Community Support