Launch AutoCAD 2017. You should see:
Do not try to install a language pack from AutoCAD 2021 onto AutoCAD 2017. The build numbers are incompatible and will corrupt your installation.
Would you like step‑by‑step instructions for downloading a language pack from Autodesk Account instead?
He stared at his monitor, his eyes burning. The version of AutoCAD he had hastily installed on this backup machine was a fresh, default install. He had been so focused on the deadline that he hadn’t checked the interface language during setup.
This workaround is fragile. It is recommended only for test environments or single-user scenarios where perfection is not required.
: Sign in to the Autodesk Account portal.
To enable the French user interface (UI) and help files for AutoCAD 2017, given that no official “2017 language pack from 2021” exists.
: Your original English shortcut will still work, allowing you to launch AutoCAD in either language as needed.