How to install a Windows 10 language pack To find out which version and edition of Windows 10 you have installed, read How to check the Windows 10 version, OS build, edition, or type. If you’re running the Windows 10 Home Single Language Edition, you can’t add a language to Windows 10 unless you upgrade to another version. NOTE: This guide was created using Windows 10 October 2020 Update or newer. Wait for the selected Windows 10 language pack to install.Check the optional features you want, and click or tap Install.Find the Windows 10 language pack you want, select it, and press Next.Click or tap on the “Add a language” option next to the plus sign.Go to the Time & Language section, and from the left column, press on the “Language” tab.Open Settings (Windows + I on your keyboard).