Operating System Compatibility - Microsoft® Windows Vista® "Windows can't verify the publisher of this driver software" Message Starting up some programs after you install them may display a "User Account Control" screen. This screen is used by Windows Vista to warn you that the software does not include information about who published it. If the software is CASIO software or software you downloaded from the CASIO website, select "Install this driver software anyway" and proceed with software installation. * If you are unsure of where a program came from, it is recommended that you select "Cancel" and not start it up.