The second I highly recommend is WonderISO tool, which is a top alternative solution for having your ISO bootable without involving complex command line. Be careful with dd comamnd, as if you get the device wrong or execute the wrong command, you could overwrite your OSX drive.

You can re-insert your USB drive to computer and check if there are some files and folders contained in it, especially a setup.exe and an autorun.inf file. Now, If nothing else, you should get a bootable USB installer. Then eject the volume by following command.

Once it's done, you can see the output records in/out and bytes transferred. There is no progress bar, but it's burning ISO to USB on Mac in the background, and stop any operations but wait it out. Make sure all of the syntax you typed are correct, then press Enter it and high return, you may be asked to enter the admin password. And the 'r' signifier should be placed in front of the disk identifier, while the'bs=1m' should be placed at the end of blocksize. In this command line, /path/to/win-iso-file is the full path of your ISO image file, make sure you type the full path. Sudo dd if=/path/to/win-iso-file of=/dev/disk2 bs=1m Now you will be asked to erase your USB drive by replacing the ISO image, make sure you've select the right identifier to avoid the unintended data loss. Unmount of all volumes on disk2 was successful. make sure you've selected the right volume name, then start to unmount it by typing the command: It might be different on your Mac.ģ: Apple_Boot Recovery HD 650.1 MB disk0s3Ġ: Apple_HFS Macintosh HD *249.8 GB disk1 Launch the Terminal and type the following command to list volumes. Note, you can select MS-DOS (FAT) for the Format. Connect your USB to mac computer, then perform Format or Erase for your USB drive by using Disk Utility (under Application/Utilities). Back up your USB drive first as your USB drive will be erased completely before you start. The first way I recommend is by using dd commend-line under Utilities, which is able to make a byte-for-byte copy of ISO image and partition table, you should know dd is a command line-only interface, which is somewhat advanced and might not suitable for the low skilled mac users.

Burn ISO File to USB on Mac in Virtualbox Burn Windows ISO to USB on Mac with Terminal

Macos iso usb