Language packs occasionally download with offline help files disabled, or your internet connection is blocking the localized online help database.
A base version of AutoCAD 2018 must already be installed and activated on your system. autocad language pack 2018
Double-click this specific shortcut to launch AutoCAD in the new language. Language packs occasionally download with offline help files
Check your current AutoCAD version. Go to the About menu. The language pack is designed for (not 2018.1 or 2018.1.1 update). However, if you have the latest update installed, the language pack will still work. If not, install the latest AutoCAD 2018 Update first. Check your current AutoCAD version
For global design teams, language is often the unsung barrier between a brilliant concept and a technical misunderstanding. While Autodesk AutoCAD 2018 remains a powerful workhorse for drafting and modeling, its native interface is locked to the language of its installation media. This is where the becomes an essential tool.
Are you using or a vertical version like AutoCAD LT or Civil 3D ?