I managed to install it onto my second internal drive by setting a junction point (using the mklink command), linking C:\ProgramFiles\Autodesk to my 😧 drive. Installation worked fine and I still have room on my C: drive. However, when I open Inventor for the first time and click activate, I receive an error 110. How can I fix this? I received this error when I initially installed Inventor without using junction points (I was left with zero spare space so I had to uninstall and reinstall with the junction point). Therefore, I don't think it is the junction point causing this activation issue. Strangely, I have installed Creo Parametric as well and am also having an activation issue with that. Any ideas?