All good fun but not one Mac I used was the same procedure. This I cured by actually removing the partition Boot Camp had created using Terminal and allowing Windows to see a area of 'free space' which it then formatted correctly and went well after that. Each Mac seems to have different methodologies and some such as my Mac mini 2012 failed at the last stage due to an EFI issue according to the Windows installation setup.
I've added Boot Camp and Windows 10 to a whole bunch of Macs ranging in age I would add that a MacBook Pro 2010 cannot use an iso insisting on using an optical disk.
