For exam purpose I'm install Inventor 2012 and after finishing exam Inventor 2012 is uninstalled.
And then I'm trying for run Inventor 2011 but can't run.
So what happen with my Inventor 2012 where before install Inventor 2011 is running normally.
I have try for repair or reinstall but still can't work. Please help me for solve this problem.
It's most likely a licensing problem with the ProductInformation.pit file. You might have to delete it as well as your licensing files and reinstall 2011 fresh.
For more information on the Autodesk KB Support article concerning the clean uninstall of Autdoesk products, see this link: