How to get a Windows 10 bootable usb from ubuntu

The way to go is to

  1. Download the official Windows 10 iso

  2. Plug the usb, and check where it is using df -h or in your Disk Utility app in the Device: /dev/sdb section. If it happens to be mounted, unmount <path/to/partition> or press the stop button in Disk Utility.

  3. Create the bootable image in ubuntu, open terminal and:

    sudo dd bs=4M if=$HOME/Downloads/Win10_2004_English_x64.iso of=/dev/sdb status=progress oflag=sync
    
  4. Done!

Thanks to this source