AutoCAD Installation has encpuntered with an Error

Hello,
Every time I receive an error message when try to install AutoCAD 2012. The error shows that “The Windows Installer Service could not be accessed. I installed this software properly but the error pop up. I have tried to reinstall the software but the same problem exists. What could be the cause? I want assistance. Thanks.
When Installing your Autodesk software you receive an error 1719 stating the following;

"Error 1719. The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance."
Â
