Get help buying, redeeming, and troubleshooting your Microsoft Casual Games Premium Edition subscription.

Learn how to manage your Microsoft 365 subscription and billing if you purchased it through a third-party retailer.

How prepaid subscription time converts when upgrading to Game Pass Ultimate or Game Pass Premium When you upgrade to a Game Pass plan that includes benefits of a subscription you already have, we'll convert remaining prepaid time and apply it toward your new plan at the current conversion ratio. See below for Game Pass Ultimate and Game Pass Premium upgrade details.

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

Some Xbox subscriptions can be extended. Find out more about what the limitations are in your country or region.

Where can I manage my Microsoft 365 subscription?

降级订阅： Game Pass Ultimate 和 Game Pass Premium 可以降级到较低级别的订阅。 降级时，不会立即收费。 你当前的订阅将持续到下一个续订日期，然后变更为新订阅等级，并在该日期收取新订阅费用。

Microsoft 365 家庭版和Microsoft 365 高级版订阅者可以通过发送电子邮件或复制 & 共享链接，与其家庭组中最多五个人共享订阅权益。

Xbox 已與 NVIDIA GeForce NOW 和 Boosteroid 合作，將第一方遊戲提供給更多玩家。 如果您在 Steam 上擁有受支援的 Xbox 遊戲，並擁有其中一個串流服務的帳戶，您隨時隨地都可以在雲端中玩您的遊戲。 只要確保您將 Steam 帳戶連結至 NVIDIA GeForce NOW 或 Boosteroid 即可。

Learn about the benefits of Microsoft 365 subscription - Microsoft 365 apps, extra cloud storage, advanced security, AI-powered features, and more.