2. Open Programs and Features.
3. Uninstall the MG3100/MP Drivers and the Canon IJ Network Tool.
4. Close all windows that are open.
Once this has been done, insert the MG3100 Series disk into your computer and reinstall the unit again.
If these troubleshooting steps do not work, feel free to call us at +1-855-517-2433 (Toll free)