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I did. According to their support page at http://windows.microsoft.com/en-us/windows-10/activation-errors-windows-10 http://windows.microsoft.com/en-us/windows-

I did. According to their support page at http://windows.microsoft.com/en-us/windows-10/activation-errors-windows-10 http://windows.microsoft.com/en-us/windows-10/activation-err... "If you've made significant hardware changes to your device (such as replacing the hard drive or motherboard), contact customer support to activate Windows". I tried that and got the same response again. So it's either reinstall/upgrade or a new license.

Already__Taken 11y ago
When I built a small batch of OEM machines I asked about cycling the hardware in later upgrades. I was told once the motherboard is changed MS consider that a different computer. Maybe if you replaced the motherboard it might have gotten activated but upgrading it I could understand. I wish the licencing wasn't such dark arts to work out. Go ask a different company I bet you'll get a different answer.