PC fails to update from Windows Home to Windows Pro

[Restless Coma]

I just recently purchased the upgrade from Windows Home to Windows Pro. I purchased the update through the Microsoft Store application on my PC. When I choose to install the update it begins to download, but fails at 9%. It tells me "Windows upgrade failed Error Code:0x80070490". The confirmation email did not contain a product key, only an order number. What can I do the correct this?

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