The error is a common installation failure often caused by Windows security restrictions, leftover registry entries from previous driver versions, or network configuration conflicts like IPv6 environments. Recommended Solutions Troubleshooting - Canon - MF Driver - Installation Guide

Running the installer without administrative rights, preventing it from writing to system folders or the registry.

The error indicates that during the Canon MF printer driver installation, the Windows installer failed to properly set up the “MF Port Monitor Exclusive” component. This component is responsible for managing the communication port between your computer and the printer, and without it, the driver setup cannot complete successfully.

If the Windows Print Spooler is actively using a corrupted or old Canon port, the installer cannot overwrite it. Press Windows Key + R , type services.msc , and press . Scroll down to find the Print Spooler service.