If you ever want to reinstall that software, just don't install that genuine service crap.
While using a downloaded setup, find the manifest directory. For autocad the file is called app.acad.en-US.xml
Just find the <Packages>-section, and remove all the stuff you don't need.

"AutoCAD Activity Insights"? Junk. "Autodesk Save to Web and Mobile" Unneeded crap. "Autodesk Featured Apps" Ugh.
I can imagine that for 3dsmax this list will be a lot longer.