We may change these Terms at any time, and we'll tell you when we do. Using the Services after the changes become effective means you accept the new terms. If you don't agree to the new terms, you must stop using the Services and close your Microsoft account.
This clause means Microsoft can materially change the conditions of your service — including data use policies, arbitration terms, and content licensing — without requiring your affirmative consent, and continuing to use the service counts as acceptance even if you missed the notification.
This agreement significantly affects consumers by requiring US-based users to resolve disputes through binding arbitration rather than in court unless they actively opt out within 30 days, eliminating class action rights for those who miss the deadline. Microsoft retains broad rights to modify, suspend, or terminate services and accounts without prior notice in many circumstances, and acquires a wide license to use content users submit through its services. You can opt out of the arbitration clause by sending a written notice to Microsoft Corporation, ATTN: CELA Arbitration Opt-Out, One Microsoft Way, Redmond, WA 98052 within 30 days of first accepting the agreement.