I'm not sure what you mean here.  Are you saying you pirated the current version of Windows that you are using?  You can download the Windows 11 iso file free from Microsoft.  I think they still want you to pay to register the software, but I don't think it is required; you will just get a nag message on the desktop saying it's not registered and they won't let you personalize some parts of it (like the desktop background) until you do.