The "Set-WinUserLanguageList" cmdlet is a powerful tool in Windows PowerShell that allows administrators and users to configure the language preferences for the operating system. This is particularly important in multilingual environments where users may need to switch between different languages for their work. By using this cmdlet, you can easily add, remove, or modify the list of languages that Windows uses, ensuring that the user interface, input methods, and other language-dependent features are set up according to your needs.

This article will guide you through the process of using the "Set-WinUserLanguageList" cmdlet to manage language settings in Windows. We will cover practical examples to illustrate how you can use this cmdlet effectively.

Examples:

1. Setting a Single Language: To set the user language to a single language, such as English (United States), you can use the following PowerShell command:

   Set-WinUserLanguageList -LanguageList en-US

   This command will configure Windows to use English (United States) as the default language.

2. Adding Multiple Languages: If you need to add multiple languages, you can specify them in a comma-separated list. For example, to add English (United States), French (France), and Spanish (Spain), you can use:

   Set-WinUserLanguageList -LanguageList en-US, fr-FR, es-ES

   This will set up the system to support all three languages.

3. Preserving Existing Languages: If you want to add a new language while preserving the existing language settings, you can use the -Force parameter:

   $currentLanguages = Get-WinUserLanguageList
   $newLanguages = $currentLanguages + "de-DE"
   Set-WinUserLanguageList -LanguageList $newLanguages -Force

   This will add German (Germany) to the existing list of languages.

4. Removing a Language: To remove a specific language, you can first retrieve the current list, remove the desired language, and then set the updated list:

   $currentLanguages = Get-WinUserLanguageList
   $updatedLanguages = $currentLanguages | Where-Object { $_.LanguageTag -ne "fr-FR" }
   Set-WinUserLanguageList -LanguageList $updatedLanguages

   This example removes French (France) from the language list.

5. Setting Language Preferences for All Users: To set language preferences for all users on a machine, you can use the -All parameter:

   Set-WinUserLanguageList -LanguageList en-US -All

   This command ensures that English (United States) is set as the default language for all users.