Exchange 2010 EMC access

Hi Guys,

After upgrading the exchange 2013, we want to decommision the exchange 2010, but I am not able to access the EMC. It gives an error, the attempt to connect to http://xxxx.xxxxx.central/powershell using kerberos authentication failed. Connecting to remote server failed .....access is denied.

Help required.
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Ajoy RajanManaged Service ConsultantAsked:
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Gaurav SinghHead - Managed ServicesCommented:
MS has tool to check tool connections issues. you can download the scritp from technet gallery. this might help to find out the problem. Refer below link

https://gallery.technet.microsoft.com/office/Exchange-Management-b9d918b1
Scott CSenior EngineerCommented:
Are you at the point where you are ready to totally decommission the old Exchange server?  If so, you don't need to run the EMC, just run a set up and uninstall Exchange.
Scott CSenior EngineerCommented:
Or look at this blog...

https://blogs.technet.microsoft.com/whats_on_scotts_mind_today/2012/12/07/exchange-2010-unable-to-open-exchange-management-console-initialization-failed/

Resolutions:
Method 1:
1.  Close all MMC/EMC instances before proceeding.
2.  Open Registry Editor (regedit) as the user you run the EMC under.
3.  Go to HKEY_CURRENT_USER\SOFTWARE\Microsoft\ExchangeServer\v14\AdminTools
4.  Look for value NodeStructureSetting.

If it is there, back it up and then remove it.

Method 2:
1.  Close all MMC/EMC Instances before proceeding.
2.  Open Powershell or Powershell IDE as the user you run the EMC under and execute the following command:.
3.  Remove-ItemProperty -Path HKCU:\Software\Microsoft\ExchangeServer\v14\AdminTools\ -Name NodeStructureSettings
4.  Close Powershell

After performing either of the methods above to remove the registry entry you should be able to open the Exchange Management Console and it will discover another Exchange server and connect.

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Ajoy RajanManaged Service ConsultantAuthor Commented:
We are at a stage where the database on the old servers automatically unmounts and we want to decommision the old exchange server.

I wanted to check, if I ask the service provider to delete the whole VM will it make a difference?

I tried to remove database using the exchange 2013 ecp, but I get the error, there are some MailExportRequest. I am not able to delete the old server databases.
Ajoy RajanManaged Service ConsultantAuthor Commented:
All good. Decommissioned the server gracefully.
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