Restore the registry Double click on "RepairReg.exe", which is stored in " C :\Program Files (x86)\Canon Electronics\CaptureOnTouch\Tools". "Restoration Tool for Scanner Registry" launches. Click the [START] button.
There are two possible locations where you can download the software (driver and CaptureOnTouch) for the R40: https://www.usa.canon.com/internet/portal/us/home/support/details/scanners/ document-scanner / imageformula -r40- office - document-scanner ?tab=drivers_downloads Canon USA website: