Windows 10: Fix for canoscan toolbox unable to open file. Twain driver Windows 10

I have been using a Canon Lide 60 with scanner Windows 7 and then Windows 10. Canoscan Toolbox and driver are installed using Troubleshoot Compatibility. But after updating to 1803 I got an error message "canoscan toolbox unable to open file".Research indicated this is related to twain driver not working with Windows 10.I accidentally fixed this when attempting to change environment variables.Go to C:Windows, open Twain32. Right click on top folder then click properties-then open sharing tab-then advanced sharing-then check share this folder.The screenshots show how to fix this.

:)

 

Unable to open TWAIN source


CanoScan LiDE60 yes its old but you can still buy them new. Its been working well on my new Dell XPS8700 running Windows 10 for over 6 months. Suddenly I get "Unable to open TWAIN source Please check connection Then re-start Toolbox" Unplugging and plugging the connection the computer gives the little beeps acknowledging the connection. However I still get the same error message and the associated "Toolbox" software doesn't recognize the scanner. Re-boot the computer no help. What does "fix" it is System Restore (one of Windows great features). The most recent restore point even has the same Win 10 update status so the problem doesn't seem to be an update. I checked scanner operation each day since the previous "fix" and it worked well for 3 days, now it doesn't. The scanner works fine on my 4-year old Dell XPS8100 running Windows 10 and the exact level of update.

There are no new drivers. Cannon says the scanner doesn't need a driver, its included in Win 10. I can delete the driver, reboot and the driver is back so I guess that's true.

Any suggestions about kick starting TWAIN would be appreciated.

 

CanoScan LiDE 35 on Windows 10 x64


Hi, I've tried in vain to get my Lide 60 scanner to work with Windows 10. The scanner works with Win7 and OSX. I've followed the above instructions several times and no dice. I've tried all plugging the scanner into all my usb ports. I can't even get VueScan to recognize the scanner in Win 10. Any suggestions? Thanks.

P.S.
I get this weird error message below, when I click "switch to" it brings up the win 10 start menu thingy then says "cannot communicate with scanner...missing twain driver"

 

Windows 10 claims my laptop needs a WIA driver for my CanoScan 8400F.

To make a long story (see below) short, where can I obtain the WIA driver that Windows 10 claims I need for my CanoScan 8400F scanner? Canon says the driver is included in Windows 10.

The long story:

In 2004 I purchased a new Canon CanoScan 8400F scanner.

In 2011 I purchased a new ASUS laptop (Intel Core i5-2410M CPU 230GHz 8GB x64-based processor) with Windows 7 pre-installed.

Using Canon's CanoScan Toolbox 4.9, the laptop and scanner communicated via USB to successfully scan photos and documents.

I never upgraded to Windows 8 or 8.1 and have no experience with those operating systems.

A few days ago I updated to Windows 10. The installation process did not remove CanoScan Toolbox 4.9.

When I tried to use CanoScan Toolbox 4.9 to scan something, ScanGear CS displayed: "Cannot communicate with scanner."

When I clicked "OK" to dismiss that message, CanoScan Toolbox displayed: "Unable to open TWAIN source."

Shutting down the laptop and restarting it did not help.

Powering down the scanner and restoring the power did not help.

For CanoScan 8400F, www.usa.canon.com displays

"There is no driver for the OS Version you selected [Windows 10 (x64)]. The driver may be included in your OS or you may not need a driver."

"Removing" CanoScan 8400F from Windows 10 and re-adding it did not help.

Eventually I discovered, installed, and tried the Windows Scan app.

Windows Scan displayed "CanoScan" under "Scanner".

When I clicked "CanoScan", Windows Scan displayed "Problem connecting to scanner. We can't find a scanner. Attach it to your PC or go to PC settings to add it."

In the "Start" menu, I clicked on "Settings".

On the "Settings" page, I clicked on "Devices".

The "DEVICES" page listed "CanoScan" among the "Printers". Why did Windows Scan tell me to add it?

I closed the "DEVICES" page, pressed Windows+x, and pressed 'P' to display the classic Control Panel.

I selected "Devices and Printers" and pressed Enter.

The first item under "Devices" was "CanoScan".

I right clicked on "CanoScan", clicked on "Scan Properties", and clicked on "Test Scanner or Camera".

The sounds from CanoScan indicated that it was moving its scanning head.

Windows 10 displayed "Test Successful Your imaging device successfully completed the diagnostic test."

Backing out to "Devices and Printers", I again right-clicked on "CanoScan" under "Devices" and clicked on "Start Scan".

Windows 10 displayed a dialog box containing an OK button and the text

"You need a WIA driver to use this device. Please install it from the installation CD or manufacturer's website and try again."

I installed the WIA driver from the Canon CD, but that did not help.

Windows 10 gave no indication as to whether the installation succeeded or failed.

The Canon CD did not indicate whether the WIA driver was x32 or x64.

Did I remove the WIA driver included in Windows 10 when I "removed" CanoScan from Windows 10? If so, how can I obtain the WIA driver again?

Thank you.