A: Go to Control Panel > Programs and Features. Find "AutoCAD 2017 Language Pack - [Language]" and uninstall. Then manually delete the leftover language folder to be safe.
An AutoCAD 2017 Language Pack is an official add-on from Autodesk that changes the software’s — including menus, tooltips, command lines, and dialog boxes — to a different language without requiring a full reinstallation of the software. Autocad 2017 Language Pack
(Best method):
AutoCAD is the backbone of the global design and engineering industry. While the software itself is a marvel of technical capability, a lesser-known feature often saves multi-national teams and individual freelancers countless hours of frustration: . A: Go to Control Panel > Programs and Features