If language packs are available for products you are installing or have already installed, the installer displays the language packs tree. The behavior of this tree is the same as the behavior of the product tree.

By default, the installer installs U.S. English for all products, but many products support multiple languages. You can install as many language packs as you want, and all of the languages installed will be available to users. Select the language packs to install, and then click Next.