Exchange 2013 Install

Hey Guys

I currently have an Exchange 2007 Environment

Went to install Exchange 2013. As I was doing this the power went out and the Server Failed. Corrupting the Install. No Problems. Recovered any lost data.

Now I uninstalled the 2013 failed install. Removed the Old Install via Add/Remove Programs

Deleted the following users in the “Users” container:
DiscoverySearch Mailbox{GUID}
Exchange Online-ApplicationAccount

Now. When I go to install the new Exchange install I get the following error

Step 7 of 14: Mailbox Role: Transport Service
The following error was generated when "$error.Clear();
          if ( ($server -eq $null) -and ($RoleIsDatacenter -ne $true) )
            Update-RmsSharedIdentity -ServerName $RoleNetBIOSName
        " was run: "RMS Shared Identity user FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 not found.".

What do you guys think?
I've done Googleing but everything seems to suggest to to a Reprep on the DC

Repreped the AD. Done That
Repreped the Schema. Done That
Rpreded the Domain, Done That

Getting sick of trying things. It not working and then re-installing it again. Done it like 6 or 7 times now.

Any help would be appreciated.
All the reseasch I have done doenst seem to help and seem to reference Exchange 2010
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Daniel HelgenbergerCommented:
It is also possible you have this error because the user "FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042" has the 'homeMDB' attribute set in LDAP. Remove/<unset> if it is set and the install will continue.

Note: You will only see these attributes if you have the 'Advanced view' enabled in the 'Active Directory Users and Computers Snap in'

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bradley1986_waAuthor Commented:
Thank you
SimonaIT ManagementCommented:
Hello everyone,
I have the same problem installing Exchange 2013.

I currently have an Exchange 2010 (before it was an Exchange 2003 that I have migrated to 2010 without major problems).

The problem is that in my AD I have not the user FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042
What can I do? Can I create this User manually? I don't think..
Any ideas or suggestions?
SimonaIT ManagementCommented:
I've solved thanks to this link:

In the Exchange PowerShell I digit:
New-Mailbox -Arbitration -Name FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 -UserPrincipalName FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042@default_accepted_domain

and now the installation of Exchange 2013 works!
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