
This solution worked
https://github.com/AlexanderB1290/UnSparseISO
I hope it works for you too.

I tried that and a few other tings that did not work. This has to do with the .iso file being flagged by windows. The program undoes the flag.RDoughBoy wrote:You can also copy the .iso file to another location on your computer and the new one will mount.