It is still linked to Virtual Clone instead of Windows.isoFile. The author went into the Windows Registry and checked the Shell entries for: HKEY_CLASSES_ROOT.isoOpenWithProgids But before this can go, one more option needs to be tried. In the end, I decided it might be necessary to run a refresh or reset Windows. The author clicked on Associate a file type or protocol with a program and looked for the ISO file but couldn't find it. So I went to Control Panel> Default Programs to check if the file associations were set correctly. The author then tried to mount again - but still out of luck! The author used free uninstaller software to completely remove the program and reboot the system. When the author tries to upgrade it to a new version, this fails. Then I noticed that my friend had installed a 3rd party application to mount the ISO image - called Virtual Clone, but the version he installed was not supported for the current operating system. So I ran the System File Checker, rebooted the system and tried to mount the ISO image again. My initial thought was that it was possible that friend was causing the problem with some file system. A friend of mine also can't mount the ISO image on Windows 10, but this is a little different: Mount option is missing!

How to repair iso corrupted file