Press the , type control printers , and hit Enter. Look for any Canon printers listed. Right-click the printer and select Remove device . Delete Stale Ports
Follow the on-screen prompts to see if the installation completes successfully. Step 2: Clear Out Old Drivers and Ports could not install canon mf port monitor
Windows often blocks the installation of system-level port monitors if the installer does not have elevated privileges. Press the , type control printers , and hit Enter
If you previously attempted to install the printer or had an older Canon model, residual files might be causing a conflict. Remove the Existing Printer Delete Stale Ports Follow the on-screen prompts to
Click and navigate to the folder where you extracted the Canon driver files (look for a subfolder containing .inf files).
Click and allow Windows to install the driver directly. Step 6: Use a Standard TCP/IP Port Instead