Recently I needed to create a new VM, and this VM needed to start from ISO file. When I mounted an ISO file and tried to boot, I’ve seen the following error:
Synthetic SCSI Controller (Instance ID xxx): Failed to Power on with
Error ‘The version does not support this version of the file format’
Best Answer
Your ISO file is most probably blocked by Windows.
Start by right-clicking the file => Properties. Click Unblock => OK/Apply.
Try now, and if that doesn't work, create a copy of the ISO file and try again.
If that doesn't work, Try a different machine.