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imageCLASS MF644Cdw Can't uninstall Canon driver -- "other Canon drivers are using the files."

LionsLatte
Apprentice

Please help.

Bottom line Windows is unable to uninstall the Canon driver "Canon MF642C/643C/644C" because a Canon Generic Plus UFR II V120 (x64) is in use.

The whole story is a long convoluted mess, but basically my wife's laptop wasn't printing to our Canon MF644C printer. I removed the previous driver and installed a new one through Printers and devices, but it couldn't print a test page. I downloaded and installed the canon driver but it couldn't print a test page either. I tried to uninstall both and one uninstalled and the other will not. I've rebooted and still get the same error. The print driver is removed but in the Printer server properties on Windows under the Ports tab I cannot delete the Canon MFNP port. Also, under the drivers tab I cannot delete the Canon Generic Plus UFR II V120 driver.

I tried to pint the printer's fixed IP address from her laptop and get "Destination host unreachable". HOWEVER, if I ping from my laptop it ping's just fine and I can print OK (after restarting the printer)

The first step is how to uninstall when I get the "driver in use" message.image.pngimage (1).png

1 REPLY 1

Greetings,

Start here:

Settings > Control Panel > Device and Printers

Right-Click on the Canon 644C. Select Remove Device from the context menu.

shadowsports_2-1668830109067.png

Printer gone. Now select (right-click) another printing destination. One Note, Print to PDF, or XPS are examples. Select Printer Properties. Press the Change Properties button.

shadowsports_0-1668829302182.png

This will unlock the ports tab and allow you to remove interfaces.

shadowsports_1-1668829568139.png

Important. After you have deleted the port with the Canon 644C designation, you must select another port for the existing device before you can save it. If its the PDF or XPS, just select appropriately. Then Apply and OK to close. Now try uninstalling the software again from the Programs and Features applet.

~Rick
Bay Area - CA


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