ISO issues with Win10

I can't believe I am writing this. I have been in IT for 15+ years. Supervisor asked me to create a set of ISO's on windows for our archive. No problem.

Except when I finally broke down and read up on how to do it, and followed the tech net instructions, I wound up with a Win10 install ISO.

I can make ISO's on my *nix box, but how do you do it in windows? WTF Microsoft!?!?

Any help appreciated.

Thank you.