To install Homebrew and create a bootable Windows 10 USB, go to Finder > Applications and launch Terminal. Related: What is Homebrew? How to Install Mac Apps in Terminal Using Homebrew This will split the Windows installer file while creating the bootable disk. To create a bootable USB macOS installer, you will need the following: A USB flash drive with at least 14GB of available storage. Homebrew is an open-source software package manager that we'll use to add a command-line tool called wimlib. For this, you'll need to install Homebrew on your Mac. Since the install.wim file included in the Windows 10 installer is around 4.79GB, this creates an problem.Ī workaround for this issue is splitting the installer into smaller files, and then combining them later.
Type Disk Utility in the search field and click it to open. Windows and macOS only have the FAT32 file system in common, which can only store a single file of less than 4GB. Here’s how to prepare your flash drive for creating a bootable macOS installer: Head to Launchpad from the Dock. Another major issue faced when creating a bootable disk on Macs is the limitation of burning a larger-than-4GB file on a FAT32 formatted drive.