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#11
Hoggorm,
If you try to use the same product key on two computers at once, when you try to use it on the second computer it will tell you that it is already in use on the first computer. The way to avoid that is to change the product key on the first computer to the generic product key for that edition of Windows:
Generic Product Keys to Install Windows 10 Editions
This is also the same way to change an OEM install to a retail install - you change the OEM product key to the generic retail product key.
They all stay activated. I have never seen Microsoft revoke a digital license once it has been acquired. And Microsoft allows changing the digital license from OEM to Retail and back to OEM at will simply by changing the generic product key.
Thank you NavyLCDR. One plan is to deactivate the license on a Win 10 Home PC, and use it on the new computer. I was hoping to avoid any issues where the license was still in use. Your suggestion to enter a generic product key might do this. How long will such a key be valid? And what are the limitations for its use?