.NET Framework Guide

To install language packs

Download Microsoft .NET Framework 4.5 from Official Microsoft Download Center
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.Net Framework 4.5.1 on Windows 10

The download page is provided in several languages, but most of the downloads are provided in English only. For additional language support, you must install a language pack. Web installer web bootstrapper downloads the required components and the language pack that matches the operating system of the installation computer from the web.

This package is much smaller than the offline installer but requires a consistent Internet connection. You can download the standalone language packs to install additional language support. Offline installer standalone redistributable contains all the required components for installing the. NET Framework but doesn't contain language packs. This download is larger than the web installer. The offline installer doesn't require an Internet connection. After you run the offline installer, you can download the standalone language packs to install language support.

Use the offline installer if you can't rely on having a consistent Internet connection. Both web and offline installers are designed for xbased and xbased computers see system requirements , but do not support Itanium-based computers. Select the language for the download page. This option does not download the localized resources of the.

NET Framework; it only affects the text displayed on the download page. If prompted, select the download that matches your system architecture, and then choose Next. If you want to install the. NET Framework on your computer, choose Run , and then follow the prompts on your screen. If you want to download the. NET Framework for redistribution, choose Save , and then follow the prompts on your screen. If you want to download resources for additional languages, follow the instructions in the next section to install one or more language packs.

If you encounter any problems during the installation, see Troubleshooting. When you install these versions on a system that has the. NET Framework 4 installed, the assemblies are replaced.

NET Framework 4 files. If you want to go back to the. NET Framework 4, you must reinstall it and any updates to it. You must have administrative credentials to install the. If you previously installed the. For more information about this issue, see Microsoft Security Advisory and Knowledge Base article Language packs are executable files that contain the localized resources such as translated error messages and UI text for supported languages.

If you don't install a language pack,. NET Framework error messages and other text are displayed in English. Note that the web installer automatically installs the language pack that matches your operating system, but you can download additional language packs to your computer.

The language packs don't contain the. NET Framework components that are required to run an app, so you must run the web or offline installer before you install a language pack. If you have already installed a language pack, uninstall it, install the. NET Framework, and then reinstall the language pack. In the language list, choose the language you want to download, and wait a few seconds for the page to reload in that language.

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NET Framework and links to additional resources. Migration Guide Provides resources and a list of changes you need to consider if you're migrating your application to a new version of the. Development Guide Provides a guide to all key technology areas and tasks for application development, including creating, configuring, debugging, securing, and deploying your application, and information about dynamic programming, interoperability, extensibility, memory management, and threading.

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