This cumulative update for Windows 11, version 25H2 and 24H2 (KB5083769), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained ...

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需要協助在主機、個人電腦或行動裝置上設定 Xbox 設定檔或登入 Xbox 嗎? 此解決方案將協助您登入或建立新帳戶。

Disk Management in Windows helps you perform advanced storage tasks like initializing a new drive and extending or shrinking volumes.

Upgrading to Game Pass Ultimate When you upgrade to Xbox Game Pass Ultimate, we'll convert any prepaid time you have on Xbox Game Pass or EA Play subscriptions and apply it toward Xbox Game Pass Ultimate at the current conversion ratio, up to a maximum of 36 months.

Introducing Copilot Notebooks–your own AI-powered workspace designed for the content that matters most to your task. Bring together all your relevant resources including Copilot Chat, files, pages, meeting notes, links, and more in one place. Share notebooks with your team to collaborate in real time, exchange knowledge, and build together with Copilot. As you work, get focused answers ...

了解如何在 Xbox 裝置上傳送、接收或刪除來自朋友的語音或文字訊息。

Microsoft正在对永久许可证的激活体验进行现代化改造。 从 2025 年 12 月 3 日起，传统的基于电话的产品激活自动化过程已从电话转移到在线。 客户将改用产品激活门户： 产品激活门户 新的数字工作流提供更安全、更可靠且用户友好的激活体验，并有助于防止欺诈。 虽然该过程已更新，但脱机激活 ...

Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.

Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.