This guide shows how to use jaran.sh to prepare a USB installer for Windows on macOS. It covers prerequisites, safety checks, how the script works, customization, and troubleshooting.
Creating a Windows USB on macOS often fails when install.wim exceeds 4 GB, because FAT32 doesn’t support files that large. This script automatically splits the WIM into .swm parts using wimlib-imagex, while handling modern macOS quirks (read-only FAT32 mounts, Homebrew install, etc.).
- macOS (Intel or Apple Silicon)
- Windows ISO image (Win10/Win11 recommended)