Hi RagB. I'm Greg, an installation specialist, 10 year Windows MVP, and Volunteer Moderator here to help you.
Follow these steps for Overcoming Upgrade problems:
http://answers.microsoft.com/en-us/windows/wiki...
Please post a screenshot of Disk Management, which I read like a doctor reads X-rays. Follow the steps here so I can see everything needed to advise you:
http://answers.microsoft.com/en-us/windows/foru...
Consider doing the gold standard Clean Install in this link which compiles the best possible Install of Windows which will stay that way as long as you stick with the tools and methods given, has zero reported problems, and is better than any amount of money could buy:
http://answers.microsoft.com/en-us/windows/wiki...
The reason I suggest this is that no one who has adopted the install in the above link has ever come back to report further problems I've seen, including another version failure. This is because everything in Windows 10 is dependent upon the quality of the install, especially Version Updates which will choke on lesser quality installs. Whether we like it or not, this is where we are in Windows 10.
I hope this helps. Feel free to ask back any questions and keep me posted. I will keep working with you until it's resolved.
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