I have confirmed this due to added information, but could you try sudo apt-get purge usb-creator
and then sudo apt-get install usb-creator In a terminal and then retry the creation. If this still fails, install UNetBootIn and try it from there to test your ISO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/882343 Title: usb-creator creates broken install usb sticks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/882343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs