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Please review Outbyte EULA and app.privacyĬlick “Download Now” to get the Drivers Update Tool that comes with the Canon Canon CanoScan 8800F driver. Reboot the computer to complete installation.See more information about Outbyte and unistall app.instrustions. (keep whatever line is currently there.just be sure that you include the " " to separate it from anything already there.)Ĭheck if the path is right on your c: drive

(this is the important step) Then in "This PC"->System Properties->Advanced system settings->Environment Variables-> System variables->Path Edit this line by add " C:\Windows\twain_32\CNQ8400" end of line Run "cstbwin4932en.exe" by double-clicking it. Click Apply and OK.Īfter, download and install the CanonScan Toolbox setup file from the Canon website: (this step might not be needed, but it didn't hurt) Right click properties on "SetupSG.exe" and go to compatibility tab of that file and select both "Compatibility Mode for Windows 7" and "Run as Administrator". Inside that folder find the file "SetupSG.exe" Go to your downloads folder (or wherever you saved it) and look for a folder labelled: 8400fvst6410231a_64en It took me some time to come across his solution.Īnd get the Windows 7 (圆4) drivers (No Win 8/8.1 drivers exist) My scanner had previously worked on Win 8.0 Pro so I was surprised that I had problems with 8.1 Pro.

I found a solution on the Microsoft forum - thanks to ArtoTyrväinen I adapted his solution for a similar scanner to work for the CanoScan 8400F and Windows 8.1 Pro. The process is probably the same for other older Canon scanners.Īs far as I can tell VueScan is not free. Hope this saves a few people some time and grief. You will see Canoscan appear in Device Manager if you have it open when you install the driver. I had the scanner connected to the computer all through the process and don't know whether this makes a difference. This will create a folder called 8400fvst6410231a_64en (again, might be different for 32 bit) in the same directory as you downloaded the file into. Locate the file, right click it to open properties, select compatibility and set this for Windows XP SP2. Right click it again and run it as administrator.ĭownload TWAIN driver file 8400fvst6410231a from Canon's website (note I think the 64 in the file name might mean 64 bit, so you may need another for a 32 bit system). Locate the file on your computer, right click it to open properties, select compatibility and set this for Windows XP SP2. There are later versions - don't be tempted. I already had the install file saved - I don't think it's hard to find on the web. As it turned out, it was quite easy - here's how I did it:ĭownload Canoscan Toolbox 4.9 software. I thought I'd struggle with installing my Canoscan 8400F under Windows 10, remembering what a faff it was getting it to work under Windows 8.1.