Follow the on-screen prompts to see if the installation completes successfully. Step 2: Clear and Restart the Print Spooler Service
Follow these troubleshooting methods in order, from simplest to most advanced. Method 1: Run the Installer as Administrator
The most common cause of this error is a corrupted previous installation. If fragments of an old driver are still present, the new Port Monitor cannot overwrite them. could not install canon mf port monitor
Re-enable your antivirus immediately after the setup completes. Step 6: Use the Canon MF Driver Uninstaller Utility
(Run as Administrator).
The installer lacks administrative rights to create new system ports.
Click when the User Account Control (UAC) prompt appears. Follow the on-screen prompts to see if the
Check the boxes next to the problematic drivers and click .
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. If fragments of an old driver are still
Article last updated: October 2025. Compatible with Windows 10, Windows 11, and Windows Server 2016/2019/2022.