I have a MF4570dn, and recently upgraded from Windows 8.1 to Windows 10.

I can no longer scan using the MF Toolbox utility.   I had MF Toolbox 4.9 installed before the upgrade, and it worked just fine.  After the upgrade, I get "Cannot communicate with the scanner" error dialog:

I thought I would try to reinstall the MF Toolbox utility, but there are two problems.

1) The downloads page shows no downloads for Windows 10 for this printer. This should be updated.

2) I downloaded the one for Windows 8.1, and tried to reinstall, but it just hangs at the "Processing Installation" screen:

I've also tried to uninstall the existing MF Toolbox first, and it also hangs at this same dialog.

I've also tried various other things without success:

- Connecting via USB instead of Network.  It detects the scanner, and MF Toolbox can switch to that device, but it still gives a communications error.

- Trying the built-in Windows Scan app instead of MF Toolbox.  It uses the WIA driver.  It barely starts to scan, then immediately cancels.

Please Canon - forward this to your engineers and provide a fix asap.  I cannot use my scanner on Windows 10.

(I can use the printer functionality just fine.)