Since Autodesk removed direct links for 2018, your best options are:
If you are working in a multinational environment or need to switch your UI from English to another language (like Spanish, German, French, or Japanese), AutoCAD 2018 handles this natively. However, the installation process is often misunderstood, leading users to unnecessarily download gigabytes of data they don't need. autocad 2018 language packs install
For AutoCAD 2018, and treat each language as a separate environment. Do not rely on switching within the same session. Since Autodesk removed direct links for 2018, your