What it means:
This error code means the activation key cannot activate the edition of Windows you have installed on your PC and is most commonly seen when an OEM activation key is used outside of its license terms:
– The license can only be activated on a newly built computer system by the system builder.
– The license cannot be used to upgrade an existing installation, e.g. going from Home to Pro.
– Activation requires a fresh Windows installation using the ISO.
– Perform a fresh Windows installation using the ISO.
– Purchase a “retail” product key that does not have the same limitations as an OEM key.
Windows 10 installation guide
Windows 11 installation guide