Failed Exchange 2010: Remove data from domain.

I have a failed Exchange 2010 server that I am working to completely redo. The problem is, I want to start 100% fresh, and I am unable to find out how to remove the Exchange data from my DC's without having the old exchange install available. (This is the part where I am pretty sure I am missing something very simple...)
Regardless, the main DC is on Windows 2008R2 Ent. The rebuilt exchange box is the same OS.
I have read several examples of how to remove/uninstall the data while Exchange is still there, but I really want to be sure before I start tinkering with my DC's as they are production and I really don't want to screw them up.
Any push in the right direction would be great.
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PhobiaDHSAsked:
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Glen KnightCommented:
Do you have any other exchange on your network?
What happened to the server?
mmardahlCommented:
Technet has an article on this.

I did this yesterday while testing a hosting scenario with EX2010.
uninstalled the screwed up installation that i tested and manipulated, and then i reinstalled, and everything was fine.

If its the last exchange server in the organization, it should remove itself from AD.

Let me know if it doesent.
mmardahlCommented:
I suppose i might as well paste in a link to the article ;)
http://technet.microsoft.com/en-us/library/ee332361.aspx

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mmardahlCommented:
check to see that the Microsoft\exchange folder is gone after removing the roles from the server.
and check that the exchange security groups are gone as well.
PhobiaDHSAuthor Commented:
The servers hard drive puked while I was in the middle of configuration and Windows decided it didn't want to play nice with my RAID 1 on the box. No big deal since it was pretty fresh. I currently have no other Exchange servers on the network.
As the server puked and it wasn't really a true uninstall, the Exchange security groups are still there in AD. If it is something as simple as deleting those, I will feel quite dumb, but I have been told that the integration with AD is much deeper than those groups, though nobody I have spoken to so far knows exactly how deep or where to find out.
As a side note, I tried to just do a fresh install before, but was unable because it detected the previous Exchange information on the DC and said I had to remove that before I could complete the install.
I am going to check quickly to see if there is anything that I may have missed previously in the setup dialog that the article mmardahl posted suggested, but I don't think there is.
Thanks for your help everyone.
PhobiaDHSAuthor Commented:
Also, I have read articles concerning the removal of Exchange data using ADSIEdit, but I would really like to avoid that if there is something that I have missed that can be done using the 2010 installer.
mmardahlCommented:
I did not get a complete picture of your situation from the initial question.

In your case, theres is nothing wrong with any of the things that are in the AD, it's just the fact that they are there, that prevents you from installing.

have you deleted the server object from your AD?

ADSIedit will udoubtely be your next move, since there currently are no tools for cleaning up exchange 2010 (afik).

Is you AD in a production state?

Also, you could consider doint a restore of the DC from before the exchange server was installed, if nothing has really changed in the AD?
You could test this with a virtual server perhaps?
PhobiaDHSAuthor Commented:
Sorry I wasn't as clear as I should have been before.
I have yet to remove anything from the DC because I feared making things worse in the long run. Wanted to be sure on this one. My DC's are both in production and change several times a day at this point, so rolling back 4 weeks is out of the question. If I would have thought about it 3 weeks ago, life would be so much more simple right now. haha
Just out of curiosity, is there a good tutorial you have found concerning 2010 stuff in AD? I have found a great many things that apply to 2007, but very few resources so far that apply to 2010. Perhaps a list of objects within AD that I need to remove would be nice if you know of one. I have what appears to be a partial list of items, but it doesn't seem to cover everything in 2010.
mmardahlCommented:
I have just completed a hosting solution with addresslist seggregation in exchange 2010.
And it was a B**CH.
Not even dave goldman who is an renoved author of ehitepapers on exchange, has managed to do this, to a level he is willing to write about, so I am pretty proud of it.
This however required doing extensive editing with ADSIedit.msc
And a ton of guesswork, since there really arent any good resourcess on exchange 2010 error situations.

The only ressource I have with a list of AD data is this :
http://technet.microsoft.com/en-us/library/aa998561.aspx

Since the install is FUBAR, you couldent really mess things up any worse by deleting these containers from the Exchange service container in active directory.

But as always, try and do thins outside work hours, and have a backup handy.
Also allow time for replication after deleting, before trying to see if the installation will continue.

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PhobiaDHSAuthor Commented:
Right on. Thanks for the help mmardahl. Will take a stab and see where everything lands. Hopefully all in one piece. haha
That link in your previous comment was nearly exactly what I needed. While not quite a map, it does give me a lot of the information I was looking for. Thanks again!
PhobiaDHSAuthor Commented:
ADSIEdit requires some more work to get figured out, but the solution presented to the question at hand is correct and about 90% complete.
mmardahlCommented:
No sweat!
Just glad to be of service.
We need people asking alot of questions about exchange 2010, so we can get google populated with some usefull search results ;)
ss8541Commented:
I'm having a near identical issue however I built my new Exchange 2010 server along side my Production 2003 serer. Although ADSI edit clearly shows two different containers

CN=Exchange Administrative Group (2010 i think)
and
CN=First Administrative Group (2003 I think)

I have not been able to confirm that there are no ties between the two. If I delete the first container will I loose my current production 2003 environment.
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