Hi, I'm Sadique. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
I would suggest you to allow me remote in your computer and work on this issue.
It will be give me a better understanding of what exactly the issue is without having to ask you questions. It will be convenient and faster.
No problem, if you don't want it we will stick to this chat only.
How is the printer connected to your computer?
wirelessly or via USB cable
Please go to control panel > then Programs and features and select Uninstall a program.
In the program list are you able to find the MP Navigator program.
Did you try reinstalling it from CANON website?
Did you download and install the MP Navigator EX Ver. 3.06 ?
Please click this link to download the correct version of MP Navigator: http://tinyurl.com/lrgvegp
Once the download completes, run the downloaded file to install.