Hi, I found following KB articles but not are working. 1) the option for external device does not show 2) checking the option to chosse boot device during boot (doesn't ask) 3) Running OSX 10.8.5 I don't plan to upgrade OS, but do I need to upgrade Parralles to get the feature. http://download.parallels.com/desktop/v9/ga/docs/en_US/Parallels Desktop User's Guide/33144.htm https://forum.parallels.com/threads/boot-from-usb-stick-thumbdrive.292202/ <== no solution and over 2yrs old
