Windows 8.1 ENG INTL FOR OEM SOFTWARE Product key not working after clean install of Windows 10

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Dly_523

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Hello,I just upgraded my CPU and did a clean install of Windows 10 Home via media creation tool/USB but when I tried to activate with my Windows 8.1 ENG INTL FOR OEM SOFTWARE Product key, it doesn't work and gives me the following:We can't activate windows on this device because you don't have a valid digital license or product key (0x803fa067)Before my upgrade, I had an active Windows 10. I read that OEM is only for one PC but I upgraded this same PC 4-5 years ago, clean installed Windows 10 and also used this product key with success. Why now is it not allow it to activate?Has something chan

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