I have made some partitions in a usb flash disk, using Disk utility. Some partitions contain bootable content. Osx system, Drive Genius utilities and so on. Every time I attach it to my mac, pop up windows appear on my screen, like when I insert a bootable dvd on my mac. I find it very annoying. I don't want any interruption to my current windows, not any popup windows alerting me of the new disk connected. If I can see it in finder, as it is, then it is ok for me. Nothing more. How can I impose 'silence' and no pop ups, from these partitions, when I attach a usb flash disk? Is there any solution or setting under osx, or not?