适用于 Windows 11 版本 25H2 和 Microsoft 服务器操作系统 24H2 的 2026 年 5 月 12 日更新包含 .NET Framework 3.5 和 4.8.1 中的安全性和累积可靠性改进。 我们建议你将此更新作为定期维护工作的一部分进行应用。 安装此更新之前，请参阅 前提条件 和 重启要求 部分。 摘要 安全改进 CVE-2026-32177 - .NET Framework 特权 ...

Uninstall from the Start menu Select Start > All apps and search for the app in the list shown. Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings Select Start > Settings > Apps > Installed apps . Find the app you want to remove, select More > Uninstall.

This article provides the latest information and status for known issues in Windows or Microsoft Intune related to Secure Boot certificates. For problems deploying Secure Boot certificates that are not caused by known issues in Windows or Microsoft Intune, please refer to the Secure Boot troubleshooting guide. In this article Known issues when deploying Secure Boot certificates Secure Boot ...

Check the Xbox services, games, and apps for any service outages.

Turn your Windows device into a mobile hotspot by sharing your internet connection with other devices over Wi-Fi. You can share a Wi-Fi, Ethernet, or cellular data connection. If your device has a cellular data connection and you share it, it will use data from your data plan. Open Mobile hotspot settings Turn on mobile hotspot in Settings In the Settings app on your Windows device, select ...

摘要 如果无法在 Windows 11 中安装、卸载或更新桌面应用，则内置恢复选项和故障排除步骤可帮助解决常见问题，例如安装不完整或应用数据损坏。

发生严重问题时，Windows 11可能会意外关闭或重启，导致你短暂看到错误消息，例如“你的设备遇到问题，需要重启”。 然后，Windows 11将自动重启。 这也称为 停止代码错误、bug 检查、内核错误 或 蓝屏错误、黑屏错误或 BSOD。

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Learn how to troubleshoot cloud storage errors when you try to synchronise your Xbox game saves.

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.