This typically occurs when you‘ve attempted a reinstallation without fully cleaning up failed AutoCAD registry entries. Residual registry keys from a previous failed installation confuse the installer.
For deployment across multiple machines: autocad 2018 language packs install
Review and accept the Autodesk License Agreement, then click . autocad 2018 language packs install
You must have AutoCAD 2018 already installed on your system. Language packs can only be added to an existing installation. autocad 2018 language packs install
Some installations may require a system restart. Save any open work before proceeding.