Exchange 2010 uninstall not done its job

I unistalled Exchange 2010 everything unistalled as i thought removed the servers is was running by removing them from the domain controllers went ok, formated the servers - reinstalled the OS on the servers rejoined the to the domain, fine no problems, come to reinstall exchange and i got the message that "Exchange was in a inconsitant state" ok - used adsiedit on the 2 AD machines.. no reference to exchange at all no objects found,  I spent hours on the internet found that you have to go through and clean the registry (but all this was advice for 2003/2007 server..  Can anybody shed some light onto this.. As why does exchange install still think it is still already installed, I have 2 AD running all the other servers was formated and reinstalled. So there must be some info on the 2 AD saying its allready there, how do i correct this

Thanks
brookejpAsked:
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Dmitriy IlyinConnect With a Mentor senior system administratorCommented:
well. above selected CN=Microsoft Exchange Autodiscover you can see CN=Microsoft Exchange
Right click on it - Remove
It will delete all Exchange servers information in your domain.
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Dmitriy Ilyinsenior system administratorCommented:
Open ADSIedit.msc
go to:
CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=local
and delete this with all subcontainers.
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brookejpAuthor Commented:
"Open ADSIedit.msc
go to:
CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=local
and delete this with all subcontainers."

I have done this already and the above is not listed, also i have gone through all the objects and there is no objects at all refering to Exchange on bothe machines.

(I will check again) but in the meantime any other suggestion.

Thanks
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Dmitriy Ilyinsenior system administratorCommented:
check domain controllers replications
only place where EX14 store information there.
Also you can delete service accounts and groups
In ADUC find:
Microsoft Exchange Security Groups (choose View - Advanced futures)
Microsoft Exchange System Objects
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brookejpAuthor Commented:
Ok, Used did a search using AD admistrice centre and it found lost of CN refereing to exchange... So this is what is saying that exchange is already installed (File) So as before went into ADSI and I just cannot find them. Where are they so i can get rid.

Thanks
Untitled.jpg
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brookejpAuthor Commented:
Hi after i post the the last comments i found them in the Schema section ----   Ok anything that is"ms-exch" is an exchange Common name and is ok to delete. Am i right? also is there another that should be deleted.

Thanks
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Dmitriy Ilyinsenior system administratorCommented:
as i can see on your screenshot you didn't delete needed CN.

ADSIedit.msc - Right click - connect - form dropdoun list "Select a well known Naming Context" - select Configuration
Go to
CN=Configuration,DC=domain,DC=local - CN=Services CN=Microsoft Exchange
and attach screenshot if you didn't find it here.

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Dmitriy Ilyinsenior system administratorCommented:
>>Hi after i post the the last comments i found them in the Schema section ----   Ok anything that is"ms-exch" is an exchange Common name and is ok to delete. Am i right? also is there another that should be deleted.
NO!!! DO NOT delete anithig in Schema until you completely shure what you are doing!
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brookejpAuthor Commented:
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brookejpAuthor Commented:
please advice thanks...
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