Error 0x004e016 bootcamp

Hi guys, I have a Win7 product key installed on my old macbook via Bootcamp. Now I installed win10 but when I use my product key I receive the error 0x004e016 and I get the message "Activate Windows"


Windows Forum Admin
Staff member
Premium Supporter
this is because the way Windows is activated has now changed. See this thread:
Windows 10 Activation explained..

So do I have to downgrade again to win 7 in order to upgrade it again from the system?

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