AutoCAD is not a free product but you can download a trial version with the possibility to update to the full version when the trial expires. To download a trial package, visit the official website and click on the Free Trial located on the left menu. Before downloading, make sure to change the language and the architecture of your operating system. If you don't know the version of your architecture, go to Start > My Computer > Right click > Properties. The type is displayed next to System Type.
