As of 6 March 2024 POK is offered on a new system, so you will have to register again.
We suggest you create a Politecnico di Milano account (anyone can do this!) because this is the only way you will be able to obtain certificates of attendance for the courses you complete (How can I create a personal Polimi account?).
If you already have a Polimi account (because you are a student or want to become one, because you are a Politecnico lecturer, researcher, employee or collaborator and you have a person code) you only need to log in with your Polimi credentials.
You can also create an account on POK without using your Politecnico credentials: in this case you will be able to access courses, but you will not be able to obtain certificates of accomplishment.