[QUOTE=24c;66572]Harry,

I have Windows 8.1 Pro, but updated the BootCamp to the latest version from the Apple website...just booting up now in OS X to get the version number. It was BootCamp 5 with the 31 January 2014 date for the folders. There was an update from the BootCamp that came with my 2011 MacBook Pro, and it something like 5.1xxxxx. https://support.apple.com/kb/DL1720?locale=en_US

Thanks Mike, so you would recommend running the scanner on windows 8.1 pro under Bootcamp 5.1.5621 rather than on Parallels 10 or 11?