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In-Place Upgrade WIndows Server 2012 R2 Standard to 2019 Error
Current server configuration is: PDC w/ AD. WIndows Server 2012 R2 64-bit. I have tried mounting the image as a CD, running the install from that as well as copying the entire contents and putting ...
Hello ettlig,
It looks like you're using an evaluation media for the upgrade, it is not possible to perform an in-place update from a licensed product to an evaluation.
The recommended and much safer method is to install fresh servers on the side, patch fully and migrate the roles or applications over to them.
If in-place upgrading is the only possibility then you'll need to purchase any interim license (if needed) as well as the end goal license, ask the license provider for the installation media for Windows Server 2019.
Best regards,
Leon