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 RS40: Support | Document Scanner | imageFORMULA RS40 Photo and Document Scanner | Canon USA - https://www.usa.canon.com/ Canon USA website: