Product key

[Windows 10]

My father had bought this hp pavilion x360 back in 2017 and it came activated now in 2024 late november it de-activated as i was trying to change it to tiny - 11 but it failed so i didnt then after that it de-activated so i checked the regedit to find my original window backup activation key but when i inserted it the "activate windows" thumbnail disappeared but its still not activated what can i do?the error code is - 0xC004C003 after running troubleshooter the troubleshooter says my activation key is for win - 10 home editionwhat can i do?

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