Create macOS Sierra Bootable USB Installer on Windows 10 So here we’re to show you how to create bootable USB Installer for macOS Sierra on windows 10, and you don’t need any MacBook or an Apple computer. If you are in the process to install macOS Sierra 10.12 on your PC or Hackintosh, the first step is to create a bootable USB installer for macOS Sierra to install Mac OS from it on your PC, you can create bootable USB Installer with UniBeast, but still, you need a Macintosh to download and create macOS Sierra bootable USB Installer. In this article, I am going to show you how to create macOS Sierra bootable USB Installer on Windows 10.