Windows Product Keys The article explains that the listed product keys are not valid for activating Windows, but only serve to select the edition during installation. These "generic" or "KMS client" keys allow users to install a specific Windows version without licensing it. The article provides links to official Microsoft documentation for further details on activation and OEM setup. These are NOT product / license keys that are valid for Windows activation. These keys only select the edition of Windows to install during setup, but they do not activate or license the installation. See learn.microsoft.com/windows-server/get-started/kms-client-activation-keys See learn.microsoft.com/windows-hardware/manufacture/desktop/oem-activation-3 See learn.microsoft.com/windows-server/get-started/kms-client-activation-keys - https://devicepartner.microsoft.com/en-us/communications/comm-windows-10-build - https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/oem-activation-3?view=windows-10 - https://learn.microsoft.com/en-us/windows-server/get-started/kms-client-activation-keys - https://support.microsoft.com/en-us/windows/activate-windows-c39005d4-95ee-b91e-b399-2820fda32227 - https://www.tenforums.com/tutorials/95922-generic-product-keys-install-windows-10-editions.html - https://www.elevenforum.com/t/generic-product-keys-to-install-or-upgrade-windows-11-editions.3713/