Another reason is Apple has already stripped the ability to make Windows 10 bootable USB in last release of Mac OS, and it is a problem because that require uses other tools. BootCamp doesn't always work well, especially in creating Windows 10 bootable USB installation media, the most common errors you will encounter: 'failed to load BOOTMGR' or 'not Enough Space'. We've also received lots of emails from readers asking why Bootcamp wouldn’t allow me to use Windows 10, despite the fact that my laptop is compatible. But in fact, creating Windows bootable USB on Mac isn’t as straightforward as you think, in the creating process, naturally there will be a variety of problems. As a Mac users, you might know that Apple provides an custom-tailored solution called Bootcamp to help create a Windows bootable USB.
Regardless of the causes, you need to first create a Windows 10 bootable USB from ISO on Mac OS. Many times you want to install Windows 10 on a Mac computer with the intention of running your favorite windows games, applications which don’t have a version for Mac OS, or solve some Windows issue especially for boot-related issues.
