: Autodesk no longer supplies new activation codes for version 2016 or older.
To activate Autodesk Inventor 2015 with an activation code, follow these steps: autodesk inventor 2015 activation code
Technical Brief: Autodesk Inventor 2015 Activation Policy As of , Autodesk has officially discontinued activation services for software versions 2015 and 2016. This shift significantly impacts how users manage legacy perpetual licenses for Autodesk Inventor 2015. Current Support Status : Autodesk no longer supplies new activation codes
Even if you manage to activate Inventor 2015 illegally, you will be stuck with a decade-old version. You will miss critical security patches, Windows compatibility updates, and bug fixes. Moreover, Autodesk will not help you if your files become corrupted. Windows compatibility updates