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.

The Microsoft .NET Framework 4.7.1 is a highly compatible in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7. The offline package can be used when the web installer cannot be used because of lack of Internet connectivity.

The October 8, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

This article describes an update about the Microsoft .NET Framework 4.6 for Windows Vista SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.

The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.

This article describes the Microsoft .NET Framework 4.6.1 offline installer for Windows 7 Service Pack 1 (SP1), Windows 8, Windows 8.1, Windows 10, Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.

Version: .NET Framework 3.5, 4.8 and 4.8.1. Summary. This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2. Security Improvements. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability. This security update addresses a remote code execution vulnerability detailed in CVE-2024 ...

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) 。

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。

可以从 .NET 下载站点下载以下文件： 立即下载 Microsoft .NET Framework 4.8 脱机安装程序包。 对于 Windows RT 8.1： 立即下载 Microsoft .NET Framework 4.8 程序包。 有关如何下载 Microsoft 支持文件的详细信息，请参阅如何从联机服务中获取 Microsoft 支持文件。