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#21
You have to make sure the Win 8.1 reinstall is reactivated, not just assume because it's a factory reset. See tutorial here: http://www.eightforums.com/tutorials...-8-online.html and use the options and activation means appropriate to your particular version and license. There are command line methods (which NavyLCDR is well versed in) that you can also use to get an exact picture of activation, license type, and exact Win8.1 version that will confirm activation before you proceed to the WIn10 upgrade (and that is confirmed to match your exact Win 8.1 version).