If you own a legitimate license or are seeking to install a previous version through your official Autodesk Account , here are the key details for the 2018 release:
Pirated versions often lack critical updates, leading to crashes and data corruption. Legitimate Ways to Get Previous Versions Unlocking the Power of Geospatial Data with AutoCAD
To ensure compliance with Autodesk's licensing terms and avoid potential security risks, users should: Unlocking the Power of Geospatial Data with AutoCAD