Obtain language packs from Autodesk's AutoCAD 2021 downloads or product support pages; match product, year, and OS.
Autodesk released the 2021 Language Pack for the following languages (subject to regional availability): Autocad Language Pack 2021
Occasionally, you might encounter some errors while trying to install a language pack. The most common one is the "AutoCAD 2021 is not found on this computer" error. Let's look at some of these issues and how to solve them. Obtain language packs from Autodesk's AutoCAD 2021 downloads
Once you have downloaded the language pack executable ( .exe ) file: Autocad Language Pack 2021
You must have administrative privileges on your Windows operating system to install software components.
: Unlike a full software reinstall, a language pack only adds the necessary localized files, saving disk space. Localized Help & Documentation