Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors
Delete all files inside this folder (these are stuck print jobs). could not install canon mf port monitor
The "Could Not Install Canon MF Port Monitor" error is a frustrating roadblock that occurs when installing drivers for Canon imageCLASS multi-function printers. It typically happens on Windows systems when the installer fails to register the custom Canon printer port driver. This issue completely halts the installation process, leaving your printer unusable. Windows often blocks port monitor installations because they
The prevents you from completing the installation of your Canon ImageCLASS or i-SENSYS multi-function (MF) printer drivers. This error disrupts the installation wizard and leaves you with an unusable printer or broken scanning functions. and select Start .
Windows often blocks port monitor installations because they require deep system modifications. Running the setup file with elevated privileges bypasses standard user restrictions.
Return to the Services window, right-click , and select Start . Try running the Canon driver installer again. 3. Completely Uninstall Existing Canon Software