: If you're a student or teacher, you might be eligible for a free or discounted version of AutoCAD through Autodesk's Education program.
To use AutoCAD 2012 x64, users need to activate it with a legitimate product key. A product key is a unique code provided by the software vendor to verify the authenticity of the product. Without a valid key, users are limited to a trial period, after which the software ceases to function.
For those looking for a product key for educational purposes or who have legitimately obtained AutoCAD 2012, here are some educational resources:
If you actually need help installing a legitimately owned copy of AutoCAD 2012 (e.g., you have a valid license file or serial from when you purchased it), I can guide you through contacting Autodesk support to re-activate it. Just let me know.