ADCS on 2008r2 DC, remove, disable and/or migrate?

J DRE used Ask the Experts™
I have a 2008r2 DC with certificate services installed. I can not demote and retire it until I address the certificate server. Upon review I see it only has issued certificates to internal servers and no workstations. Certificates templates in use are Domain Controller Authentication and Directory Email Replication. I am running NPS on the server as well and have a secure wireless cert issued to local server. I am not using NPS and going to remove that service prior to dealing with the Certificate Server.  I am not overly familiar with certificate services so forgive my question if naive, but can I revoke existing certs, disable the certificate services on the 2008r2 DC server, install certificate services on 2016 DC, wait for certs to be issues from new server and then decommission the 2008r2 server? I have reviewed the migration process of certificate services to a server with the same name, but it seems that I am barely using certificate services now and would like to just start over if possible. Thanks.
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Distinguished Expert 2018
Considering certificates are a security measure, it really is best to migrate. That way, if you ever need to revoke a certificate because of a compromise, you can. If you just "start fresh" you save yourself...a half hour of work? An hour maybe? And you take away an important tool you might regret down the road.
It would be better to do the following
1) Stand up a new WIndows2012 /2016 member server
2) Install ADCS and the Web Enrollment roll if used in your environment
3) Once configuered and you have ensure the ca cert is listed in AD, unpublished you template from you old server and publish them on your new server
**You need to make not on your CRL location on the old server. All issues certs that are still active need to still be able to access the CRL to validate the cert.**
Seth SimmonsSr. Systems Administrator

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