Windows 10 language packs allow you to change the language used for the Windows interface—including menus, dialog boxes, and help topics—across your entire system. These packs often include additional "Features on Demand" such as , handwriting recognition , and basic typing (spell checking and dictionaries) . How to Install a Language Pack
Icons next to the language name will indicate if it supports display, text-to-speech, speech recognition, and handwriting.
A language pack in Windows 10 is a collection of files that contain translations of the operating system's text, including UI elements, help files, and other display text. These packs allow users to change the language of their Windows 10 installation, enabling them to interact with the operating system in their native language. Language packs are available for various languages, including but not limited to English, Spanish, French, Chinese, Japanese, and many more.
Whether you are a casual user wanting to practice a new language or an IT administrator deploying thousands of perfectly localized machines across a global corporate network, these simple digital files keep our hyper-connected world talking. Language packs for Windows - Microsoft Support