AutoCAD 2012 64-bit was compatible with Windows 7 (64-bit) and later versions. The system requirements were:

The installation process for AutoCAD 2012 64-bit involves running the setup.exe file from a download or physical media. During setup, users must choose between a standalone license or a network license. System requirements for AutoCAD Mechanical 2012 - Autodesk

: This version introduced Autodesk Inventor Fusion , a plugin allowing for history-free, direct manipulation of 3D models.