Exclusive: Could Not Install Canon Mf Port Monitor

Windows 11 may block the port monitor if it perceives the driver as unsigned or from an unverified source.

Residual drivers are a major cause of the “exclusive port monitor” error. could not install canon mf port monitor exclusive

A previous, possibly failed, installation may have already created a "Canon MFNP" or "TCP/IP" port that the new installer cannot overwrite. Windows 11 may block the port monitor if