Mac OS X: - Insert a USB flash/hdd (minimum 8GB in size) and erase it with Disk Utility using any format. - Double click "Restore Y to USB.pkg", select the USB flash/hdd you erased as target and click install. It will restore the iATKOS Y dmg image to your USB device. It can take up to 200 minutes according to your hardwar e. Windows: - Use Transmac to restore the iATKOS Y dmg file to your USB device. It will also take long to finish the restore operation, raw write to USB takes long on any platform. I advice you to use a USB3 device/port, mine restores in 4 minutes. cheers uphuck e. Windows: - Use Transmac to restore the iATKOS Y dmg file to your USB device. It will also take long to finish the restore operation, raw write to USB takes long on any platform. I advice you to use a USB3 device/port, mine restores in 4 minutes. cheers uphuck