The attached image shows the codemeter/wibu-key option for the version 14 installer.
As I mentioned I don't think this option exists in version 10.
So maybe you will need to uninstall the WIBU-key drivers/program.
I was of the belief that the two systems are not compatable but not having Codemeter I can't say for sure.
I am using the compatibility mode (your option a) to run 10 on my Windows 7 machine.
Works pretty well except that OpenGL doesn't work and I can't Publish to PDF.
Is there any reason why you can't open the old 10 files in 14 but keep using the version 10 library?
It means you won't be able to open them in 10 again on any machine but it sounds like you are moving away from 10 anyway.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11