了解如何检查、下载和安装 Windows 8.1 和 Windows RT 8.1 的更新 KB 2919355。

重要说明：Windows 11版本 22H2 的非安全更新终止日期. Windows 11版本 22H2 Enterprise、教育版、IoT 企业版和企业多会话版的新结束日期为 2025 年 6 月 24 日。. 家庭版、专业版、专业教育版和 Pro for Workstations 版本 22H2 将在 2024 年 6 月 26 日之前收到非安全预览版 ...

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Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance. Here’s what you need to know about installing this important update.

Workaround. All users. Windows 11 devices attempting to install the February 2024 non-security update, released February 29, 2024, might face issues during the update process. The installation might fail when the update's download reaches 96% of completion, and the device might roll back to the previous update installed.

Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements. For a complete list of improvements see: .NET Framework 4.8.1 release notes.

There will be a monthly security release for December 2023. Normal monthly servicing for both security and non-security preview releases will resume in January 2024. For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types.

Windows 11 servicing stack update - 22621.2495 and 22631.2495. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

For more information, see KB5020276. If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device. For more information about security vulnerabilities, please refer to the Security Update Guide website and the March 2023 Security Updates.

When you install this KB: This update addresses an issue that affects authentication. Using a smart card to join or rejoin a computer to an Active Directory domain might fail. This occurs after you install Windows updates dated October 2022 or later. For more details, see KB5020276.