Under the "Preferred languages" section, click the + (Add a language) button.

If you prefer a command-line approach or need to automate the installation, you can use the LanguagePackManagement module in newer versions of Windows 10. To install : Open PowerShell as an Administrator and run: powershell Install-Language -Language ar-SA Use code with caution. Copied to clipboard To set as display language powershell Set-SystemPreferredUILanguage -Language ar-SA Use code with caution. Copied to clipboard Get-InstalledLanguage to see your currently installed packs. Super User Option 3: Offline/Manual Installation

Choose the one that suits your need. For general use, select .