<ul data-eligibleForWebStory="false">To change the system language on Windows 11, go to Settings > Time & Language > Language & region.Click on 'Add a Language' under Preferred languages, select the desired language, and set it as the display language.To change the default language, go to Settings > Time & Language > Language & Region, and click on Sign-out.To disable language sync to your Microsoft Account, go to Settings > Accounts > Windows Backup and uncheck Language preferences.