AutoCad Installer Runs when I launch Utilities 15

I saw a similar post for Autocad 9 but the soultion link was dead.  I'm having the same problem with Autocad LT 2011.  EVERY time I launch Utilities 15 I get the installer windows for AutoCAD LT 2011.  I can cancel and everything works fine but why do I keep getting this popup?

I have the same problem that was originally raised on this post. I am using Windows 64 bit professional, Norton Utilities 15 and Autocad LT 2013. Everytime I launch NU15, I get the installer window for Autocad LT 2013. As mentioned above, I can cancel it and everything seems to work OK. Does anyone know of a way to stop this happening please?

I saw a similar post for Autocad 9 but the soultion link was dead.  I'm having the same problem with Autocad LT 2011.  EVERY time I launch Utilities 15 I get the installer windows for AutoCAD LT 2011.  I can cancel and everything works fine but why do I keep getting this popup?