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I did an W10 clean install on a friend's selfbuilt PC using his 8.1 product key. Activated just fine. OEM BIOS unlocks tend to not work between Windows version
by discreditable 9y ago
I did an W10 clean install on a friend's selfbuilt PC using his 8.1 product key. Activated just fine.
OEM BIOS unlocks tend to not work between Windows versions. I've experimented with this a little. My go-to method to upgrade these is to clean install the version that will BIOS unlock, activate it, then upgrade that to Windows 10. After you upgrade, you can clean install Windows 10 on the system and it will activate normally.