I want to go back to Windows 10

How do I get from Zorin back to Windows 10?
Zorin is not really running well and I don’t want to use it anymore.

Honestly, not sure how Microsoft is doing Win10 Installations, these days.
Back when I used Windows, I held on to XP pro until only a couple of years ago. That was installed by disk.
This is what Microsoft says on it:

No, what I mean is how do I boot from a separate disk in Zorin?

This depends on your Hardware- I believe you are working with a Surface Notebook.

This would have been the same method you used to boot the installation media for Zorin.