Windows 11/10 product key not working The way to go about this is Upgrade your Windows 7 or Windows 8.1 to Windows 10, or Windows 10 to Windows 11.

Your windows 10 key in the old laptop won't transfer to the new one, because it's embedded in the UEFI.

Finding your Windows 10 product key isn't rocket science! Use simple tools, the registry, or your purchase details to recover it effortlessly. Here’s how.