Do this:
- (In the Arduino IDE) File > Preferences
- Click the link on the line following "More preferences can be edited directly in the file:". This will open a folder in your Windows File Explorer.
- Navigate to the packages\arduino\hardware\sam\1.6.12\variants\arduino_due_x subfolder.
rockyrude:
I did my install to my d: drive, does that change anything?
By "my install", do you mean the installation of the Arduino IDE? If so, the answer is no, that doesn't change anything.