I hope this is enough information to give someone a start as to what is happening here. I checked scanner operation each day since the previous “fix” and it worked well for 3 days, now it doesn’t. Tech support scams are an industry-wide issue where scammers attempt to trick you into paying for unnecessary technical support services. I can delete the driver, reboot and the driver is back so I guess that’s true. September 29th, at As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in.

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Canon scanners can be quite picky about usb3 for instance.

New 08 Apr 7. Does not fix this.

How satisfied are you with this response? The scanner works fine on my 4-year old Dell XPS running Windows 10 and the exact falled of update. I can delete the driver, reboot and the driver is back so I guess that’s true. New 07 Apr 2. November 3rd, at This does not work. November 25th, at December 17th, at Breaking Protections in Hardware Cryptocurrency Wallets.


It worked and was much simpler than other suggested fixes.

Canoscan Toolbox Failed To Open A Driver – bm-programmes

Sorry this didn’t help. I ran diagnostics and scanner executes successfully. Thank you so much! Click here to Register a free account now! Thanks a lot for this fix. PaperBox, a cloud reference manager. Thank you for this.

I opeen the same question Comments 13 Leave a comment. I select scan profiles and it states “No scanner detected”. Would you have any further suggestions for me, please?

MF toolbox can’t find scanner

I’ve forgotten my password. Technically, I am hopeless, but this really helped a lot! This thread is locked.

You can follow the question or vote as helpful, but you canoscn reply to this thread. Did this solve your problem? Both port types clearly recognize when is it plugged or unplugged per the Device Manager.

Have you changed USB ports lately?

Canon scanner “Unable to open TWAIN source” error.

The CanoScan Toolbox 4. I guess “deprecated” doesn’t mean “won’t work”. Hi, Its a brand new computer running bit windows. Thanks for your feedback, it helps us improve the site.


Remember me This is not recommended for shared computers.