Fix For MF Scan Utility Failures Windows 11 24H2

[Dale_1973]

I have been frustrated by this issue also. I bought a new desktop machine and it immediately updated and installed Win11 24H2 on it. I then installed my Canon software for my printer MF750C and the MF Scan Utility would fail with the message mentioned many times in this thread.

I have installed all the latest updates and including the one Microsoft released 12/10/2024, KB5048667, but none of that made the scanner software work.

Now today I reinstalled just the drivers for the MF750C under the Imaging devices in Device Manager, and it started working, and has kept working as I think I have tested after rebooting at least 10 times today.

So bring up Device Manager, (right click on the Start Menu), expand Imaging devices, then right click your device, mine says Canon MF750C Series, (2 times). Now this part is important as I checked it twice and if you don't Disable the device first it doesn't seem to work right. So right click on the device and click Disable Device. My MF750C is listed twice here in Imaging devices, so be sure to Disable Device for both of them. Then right click on it again and select Browse my computer for drivers, then select Let me pick from a list of available drivers on my computer. Your printer/scanner should be in the list, make sure it is selected, then click Next.

Mine then came back and said Windows has successfully updated your drivers. Make sure you do this for BOTH of the devices listed there, at least if it lists two of them. Windows does say it updated the device driver. I'm not sure what it did for sure but it did something.

It doesn't say you have to, but I then rebooted my machine before I tried the software, but then the MF Scan Utility works! It has kept working for 2 days now, and after many reboots!

I don't know if this will work for everyone but so far it has worked for me. I have no ideas what made it work today. Microsoft and Canon, (and apparently HP and Brother), need to talk and get this resolved for people!

Merry Christmas!

[DjwOhio]

This approach (Jake807) worked for me also. I previously tried removal\reinstall of the Canon drivers and Scan utility on multiple machines to no avail. ( I had also tried the KB install and an update rollback on one machine)

By deleting the Twain files as part of removal and the reinstalling of the Canon drivers and Scan utility (No need for a separateTwain install) The MF Scan Utility and the Scan to computer functions on my MF424dw all work on all machines. Now to bring forward the machine I did the rollback on...

Thank you Jake for posting this!

[jwms]

I followed these steps for my MX922 (Windows 11) and it worked for the printer, but I still have no Scanner, or the icons for scanning in the Canon Quick Menu.

In Windows Settings, the printer shows "Scanners not Appearing".

Does anyone have a fix for this?

[RJI]

This fix did get my Canon ImageCLASS MF455dw working after the Windows 11 24H2 update.  However, it seems that the printing and scanning both run very slow until I reboot both the computer and printer.  This happens after what I would consider not a lot of printing, maybe 50 to 100 pages.  Any idea why this is happening and a way to maintain a reasonable performance speed?

[mmfsw]

I managed to install printer and scanner for MF8580Cdw under Win11 Pro 10.0.26100.
- remove owner 'Trusted Installer' from directory 'C:\Windows\twain_32' and delete directory
- download Canon drivers: MF8500CMFDriverV420WPusEN.exe, ToolBox4911mf18WinEN.exe, NetworkUSBScanPatchEN.exe
- connect PC and printer 1:1 using ethernet cable (to block PC internet connection)
- disable Windows Firewall and Real-Time protection
- install above mentioned 3 setups and reboot
- re-enable Windows Firewall (Real-Time protection should be re-enabled by Windows automatically)
- folder C:\Windows\twain_32 now should contain 2 subfolders: MF8500C and MF8500C_XXXXXXXXXXXX where the X's correspond to the MAC address of the printer