Note: NET Framework 4.8.1 installers have been refreshed to include the latest servicing updates as of June 13th, 2023. Apart from the servicing fixes, there is no change in the .NET Framework 4.8.1 product that was released originally on August 9th, 2022.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Microsoft .NET Framework 修复工具可检测影响Microsoft .NET Framework 设置或更新的常见问题。 该工具尝试通过应用已知修补程序或通过修复受支持 .NET Framework 版本的损坏安装来解决这些问题。 该工具具有易于使用的基于向导的用户界面 (UI) 。

Get more information about managing your Xbox subscriptions, issues with billing, and more.

For Xbox Series X, the port is on the front right below the Pair button . For Xbox Series S, the port is on the front left next to the Pair button . For Xbox One X and Xbox One S, the USB port is on the front under the Power button.

Windows Update recommends a reinstall after an update installation fails. If an update fails to install because of problems related to system files or components, you might see the following message in the Windows Update page in Settings:. Reinstall your current version of Windows to repair system files and components.

The Storage Expansion Card for Xbox Series X|S is an optional external solid-state drive (SSD) that adds 2TB, 1TB, or 512GB of lightning fast storage to your Xbox Series X|S console. The Storage Expansion Card performs identically to the console’s internal SSD.

Microsoft .NET Framework 4.8.1 是.NET Framework 4.8 的高度兼容和就地更新。 它包括对 Arm64 体系结构的本机支持 (Windows 11+) 、辅助功能改进以及其他改进。 有关改进的完整列表，请参阅：.NET Framework 4.8.1 发行说明。

Note: The Wireless Display app is available on devices running Windows 11 version 22H2 and newer.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

关于 .NET Framework 4.6.2. Microsoft .NET Framework 4.6.2 是 Microsoft .NET Framework 4、4.5、4.5.1、4.5.2、4.6 和 4.6.1 的高度兼容就地更新。 脱机包可用于由于 Internet 连接性不足而 无法使用 Web 安装程序的情况。 此包大于 Web 安装程序，不包括语言包。