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Attempting to import new SSL Certificate for Exchange 2010

Philip Cyr
Philip Cyr asked
Last Modified: 2015-03-11
I am attempting to install a new certificate on an Exchange 2010 server.  Our current certificate expires today.  

I previously tried to import the certificate and some how messed up so I started over but now I am getting an error "Cannot Import Certificate. A certificate with the thumbprint XXXX already exists."  

I have checked the certificate store and deleted it but it is still showing this error.  Searching on here I attempted to run the command remove-exchangecertificate -thumbprint XXX .  But getting an error that the PrivateKeyMissing.

Any ideas?
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