Exchange 2013 re-install CAS

Is there a way to re-install CAS without re-installing mailbox server role?
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Will SzymkowskiSenior Solution ArchitectCommented:
Uninstalling individual roles is not supported on Exchange 2013, even when you try and run this from the command line. If you attempt to perform a uninstall it will remove all of the roles.  See the link below for the release notes regarding this.


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AmitIT ArchitectCommented:
Will is correct. To further confirm, check this:

Note: Exchange 2016 CAS Role is also removed. It is now only Mailbox role and Edge role left. Finally, Microsoft did a right move. That will save lot of cost on extra hardware/software.
cmdlnAuthor Commented:
Will, please could you point me to the part of the release notes that mention this.
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cmdlnAuthor Commented:
Does this mean you cannot move roles once they have been installed?
AmitIT ArchitectCommented:
yes, that is correct. You need to remove all roles. Microsoft recommend to keep all roles one server.
Will SzymkowskiSenior Solution ArchitectCommented:
This is not supported period. Cannot be done.

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