Sir, while i am instaliing autocad 2012,it shows a error message many times..I have aready installing Microsoft c++ 2010 *86 from it site..but after that i am having same problem..
I send u a snapshot of problem statement.
How about trying to load .net framework 4.0 It has been a little while since I have loaded 2012 but I seem to remember there needing to be a couple other things loaded before I could install 2012.
Copy the installation media to your hard drive. Install with local admin rights. DO NOT add a service pack during the install. Make sure there is not already an AutoCAD 2012 folder under Program Files. Disable your anti-virus and make sure UAC is off. See my 1603 link for more information.