Based on original article which can be found here: http://www.zdnet.com/article/how-to-turn-your-windows-10-upgrade-into-an-iso/
They are good tips and tricks, I found which may work for you. They did for me first time and the majority of other computer users.
Steps you can take; to try mitigate or avoid this issue from happening for many and in my eyes would be a clean installation of windows 10. This requires formatted hard drive preferably a NTFS file partition and key for install. Although if you’re a system administrator and know your product keys you can skip this requirement.