Re: But...
Despite what MS believe or what they try to bully you into believing, buying something does not diminish your legal, statutory rights if the goods are duff.
Not just that. In some jurisdictions, having an illegal part in a contract will render the rest of the contract null and void falling back to standard consumer law across the board. A good lawyer should be able to argue that any limitation they put in that contract (even the allowed ones) being null and void because the contract as a whole is illegal due to having illegal clauses.