"Do I need to uninstall the other one first?" Elias asked.
Stay productive in your native language! 🖥️🌍 autocad 2017 language pack work
The language pack must match the exact version of your software. You cannot install an AutoCAD Architecture language pack on a standard AutoCAD installation. Command Entry: How Does the AutoCAD 2017 Language Pack Work
Here's a step-by-step explanation of how language packs work in AutoCAD 2017: autocad 2017 language pack work