Hello @rr-4098 Thank you for contacting us on Microsoft Q&A platform. Happy to assist!
It looks like you are using the modernize appliance not the classic one and trying to follow the installation of the classic instead of the correct one.
Just follow this installation for GUI:
Or cmd line:
This should help resolve your issue. Please reply if you need help!
If the response helped, do "Accept Answer" and up-vote it