Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

此适用于 Windows 11 版本 25H2 和 24H2 (KB5120998) 的累积更新包括生产质量改进。 公告和消息 本部分提供与此版本相关的重要通知，包括公告、更改日志和终止支持通知。 Windows 安全启动证书过期 重要提示： 大多数 Windows 设备使用的安全启动证书从 2026 年 6 月开始过期。 在过去的几个月里，Microsoft 一直 ...

检查 XBOX 服务、游戏和应用是否有任何服务中断。

Find out how to manage your XBOX subscriptions to request a refund or cancel a recurring payment.

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。

获取有关 Microsoft 帐户的帮助。 了解如何设置 Microsoft 帐户，如何保护它，并使用它来管理服务和订阅。

Pelajari cara menemukan kunci produk Windows untuk aktivasi, dan kapan Anda akan menggunakan lisensi digital sebagai gantinya.

This cumulative update for Windows 11, version 23H2 (KB5078883), 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. For ...

If you purchased a game or app from Microsoft, you may be able to request a refund. To request a refund on apps and games for use on Xbox, go to Request a refund for digital games. To learn about refund eligibility, select a tab below.

If you get an email from Microsoft account team and the email address domain is @accountprotection.microsoft.com, it is safe to trust the message and open it. Microsoft uses this domain to send email notifications about your Microsoft account. These notifications can include security codes for two-step verification and account update information, such as password changes. You can check the ...