@brian ashley
Hi,
According to your description, you may need to buy a new pro license.
When Windows 10 was first released, the offer for a free upgrade was available, but it ended on July 29, 2016.
For your reference:
https://www.microsoft.com/en-us/store/b/windows?activetab=tab%3ashopwindows10
Hope above information can help you.
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