How to install AutoCAD 2012 on Windows 32bit or 64bit?
Depending on the computer architecture you are using (32bit -x86- or 64bit -x64-) make sure you use the right DVD or web installer from Autodesk®
Once the installer starts, click on Install.
Accept the End User License Agreement from your Country/Region, then click on Next.
You might have to install .NET Framework 4 prior to AutoCAD 2012 installation, and also included in the installer.
Select the License Type, and your Product Information, then click Next.
On the following window, confirm the installation component you wish to install, then click on Install.
The installation process will begin.
Once the installation is complete, click Finish.