Autocad 2012 Portable -
. For students or educators, Autodesk offers free, official educational licenses for modern versions. Official System Requirements (for Reference) If attempting to run a 2012 version on older hardware, the CADDManager Blog list the following baseline requirements: : 2 GB (minimum); 8 GB+ recommended for 3D modeling. Disk Space : 2 GB for installation. : 1280 x 1024 resolution with true color.
Downloading unauthorized portable versions from file-sharing sites or forums poses several dangers: System requirements for AutoCAD 2012 - Autodesk autocad 2012 portable