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How to create a bootable Windows 10 USB on Mac

The last release of Mac OS doesn't have the option to create a bootable USB from Bootcamp like previous versions, and it is a problem because that require uses other tools.

I will show you how you can use UNetbootin to create a bootable USB, it can be used no only for Mac but for Windows and Linux distributions too.

UNetbootin is free software and it is also available for Windows and Linux.


Format USB to FAT32

The USB should be FAT32 or it will not work, you can use Disk Utility and format it, and ensure you select FAT32 and Master Boot Record in the options:

Disk Utility FAT32

Check the path name of your USB Disk.

Always in Disk Utility, select the new partition that we created in the previous version, and click on the information button, it will give you the information about the new partition.

Disk Utility USB Information

You also can use the terminal and the command diskutil to see the list of drives:

diskutil list

Download UNetbootin:

brew cask install --appdir="/Applications" unetbootin

Makes the USB booteable

Open UNetbootin and you only need select 3 options:

  • Diskimage and ISO
  • Now we need open the ISO Windows image that is on our computer.
  • Select your USB device on UNetbootin.
  • Click on the OK, button and wait to the process end it will take a time.

UNetbootin Windows


  • I tested other tools like dd and Etcher but they are not working because Windows requires extra steps, for the moment this is the only easy tool that I know that works if you are on Windows try Rufus.
  • Some users reported that UNetbootin is not working, if after to format the USB drive and change the block size is not working for you try another Drive with enough space.