I recently hit a brick wall while trying to update a certificate template in my stand-alone Server 2016 Certificate Authority.
My goal was to add the “Client Authentication” policy to the the Web Server template, but whilst I could create the new template without any problems, Windows wouldn’t let me add it to the list of “certificates to issue”.
Copying Templates
The process to copy a certificate template is fairly well documented. The short version is:
- Launch the Certificate Authority MMC:
- Right-click Certificate Templates and select Manage, which opens the “Certificate Templates Console”.
- Right-click on the certificate you want to copy and select Duplicate Template.
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