Hello everyone sorry for my english I write from Italy congratulations for the very light knowledge; I wanted to share a guide to install other languages.
Personally I have successfully installed the Italian language;
for those interested I attach the guide to permanently maintain the language.
To install the language, key windows + r then type lpksetup,
then run the installation, in the end it will give you the installation failed do not worry ask and follow the guide I enclose.
the language pack you need to download in any language you want the file must be for the version from 1903 to 1909 (I had the problem of finding the right one) Hello and good work to all