在 Windows 10 和 Windows Server 2016 及更高版本上安装 .NET FrameworkInstall the .NET Framework on Windows 10 and Windows Server 2016 and later

在 Windows 上运行许多应用程序需要 .NET Framework。The .NET Framework is required to run many applications on Windows. 本文中的相关说明可帮助你安装所需的 .NET Framework 版本。The instructions in this article should help you install the .NET Framework versions that you need. .NET Framework 4.8 是可用的最新版本。The .NET Framework 4.8 is the latest available version.

在尝试运行应用程序后,你可能转到了此页并在计算机上看到一个对话框,如下所示:You may have arrived on this page after trying to run an application and seeing a dialog on your machine similar to the following one:

无法启动此应用程序

.NET Framework 4.8.NET Framework 4.8

.NET Framework 4.8 随附:The .NET Framework 4.8 is included with:

.NET Framework 4.8 可用于运行针对 .NET Framework 4.0 到 4.7.2 生成的应用程序。.NET Framework 4.8 can be used to run applications built for the .NET Framework 4.0 through 4.7.2.

.NET Framework 4.8 可安装于:You can install .NET Framework 4.8 on:

  • Windows 10 2018 年 10 月更新(版本 1809)Windows 10 October 2018 Update (version 1809)
  • Windows 10 2018 年 4 月更新(版本 1803)Windows 10 April 2018 Update (version 1803)
  • Windows 10 秋季创意者更新(版本 1709)Windows 10 Fall Creators Update (version 1709)
  • Windows 10 创意者更新(版本 1703)Windows 10 Creators Update (version 1703)
  • Windows 10 周年更新(版本 1607)Windows 10 Anniversary Update (version 1607)
  • Windows Server 2019Windows Server 2019
  • Windows Server 版本 1809Windows Server, version 1809
  • Windows Server 版本 1803Windows Server, version 1803
  • Windows 2016 ServerWindows Server 2016

以下系统不支持 .NET Framework 4.8:The .NET Framework 4.8 is not supported on:

  • Windows 10 1507Windows 10 1507
  • Windows 10 1511Windows 10 1511

如果正在使用 Windows 10 1507 或 1511,且想要安装 .NET Framework 4.8,首先需要升级到较新的 Windows 10 版本。If you're using Windows 10 1507 or 1511 and you want to install the .NET Framework 4.8, you first need to upgrade to a later Windows 10 version.

.NET Framework 4.6.2.NET Framework 4.6.2

.NET Framework 4.6.2 是 Windows 10 1507 和 1511 上支持的最新 .NET Framework 版本。The .NET Framework 4.6.2 is the latest supported .NET Framework version on Windows 10 1507 and 1511.

.NET Framework 4.6.2 支持针对 .NET Framework 4.0 到 4.6.2 生成的应用。The .NET Framework 4.6.2 supports apps built for the .NET Framework 4.0 through 4.6.2.

.NET Framework 3.5.NET Framework 3.5

请按照说明操作,在 Windows 10 上安装 .NET Framework 3.5Follow the instructions to install the .NET Framework 3.5 on Windows 10.

.NET Framework 3.5 支持针对 .NET Framework 1.0 到 3.5 生成的应用。The .NET Framework 3.5 supports apps built for the .NET Framework 1.0 through 3.5.

其他信息Additional information

.NET Framework 4.x 版本是早期版本的就地更新版。.NET Framework 4.x versions are in-place updates to earlier versions. 这意味着:That means the following:

  • 计算机上只能安装一个版本的 .NET Framework 4.x。You can only have one version of the .NET Framework 4.x installed on your machine.

  • 如果计算机上已安装更高版本,则不能安装 .NET Framework 的早期版本。You cannot install an earlier version of the .NET Framework on your machine if a later version is already installed.

  • .NET Framework 4.x 版本可用于运行针对 .NET Framework 4.0 到该版本生成的应用程序。4.x versions of the .NET Framework can be used to run applications built for the .NET Framework 4.0 through that version. 例如,.NET Framework 4.7 可用于运行针对 .NET Framework 4.0-4.7 生成的应用程序。For example, .NET Framework 4.7 can be used to run applications built for the .NET Framework 4.0 through 4.7. 最新版本(即 .NET Framework 4.8)可用于运行使用从 .NET Framework 4.0 开始的 .NET Framework 的所有版本生成的应用程序。The latest version (the .NET Framework 4.8) can be used to run applications built with all versions of the .NET Framework starting with 4.0.

如需可供下载的 .NET Framework 所有版本的列表,请参阅 .NET 下载页。For a list of all the versions of the .NET Framework available to download, see the .NET Downloads page.

帮助Help

如果无法确定已安装 .NET Framework 的正确版本,可以联系 Microsoft 获取帮助If you cannot get the correct version of the .NET Framework installed, you can contact Microsoft for help.

请参阅See also