I have installed & uninstalled Map3d approximately 3 times now. It seems to install normally but when I try to open the program a small window blinks really fast which says "Please wait while Windows configures AutoCAD Map 3D 2013". Then nothing happens. No errors or anything.
I'm running Windows 7 and I do have Map 3D 2012 still installed (I've had two different versions installed in the past with no problems).
I tried your suggestions. I opened each program and was able to complete registering Map 3D with one of the programs that was bundled with Map3d. However, I have not activated it because I still cannot open Map 3D.
I have also checked the permissions on the APPData folder. No Luck.