After downloading the UNetbootin utility, launch the software. Click on the info button and write down the device name. Open Disk Utility and select your USB drive on the left. here is how you can do it on Mac using UNetbootin. However, If you’ve downloaded the Windows 10 ISO image and also you will need a USB drive (with a capacity of 16GB as a minimum recommendation). You can either let UNetbootin download one of the many distributions supported out-of-the-box for you, or supply your own Linux.ISO file.

The application is cross-platform and is available for Windows, Linux, and Mac OS X. UNetbootin allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions without burning a CD.

UNetbootin is a free, open-source utility that allows you to create bootable USB drives on Windows, Linux, and Mac OS X. But the easiest way to create Windows 10 bootable USB is using third-party software like UNetbottin.

To create Windows 10 bootable USB on macOS Mojave and macOS Catalina using Boot Camp Assistant isn’t supported anymore. How to Create a Windows 10 Bootable USB on Mac High Sierra Create Windows 10 Bootable USB on Mac Using UNetbottin