Downloading a macOS 64-bit ISO (formerly Mac OS X) is primarily used for setting up virtual machines on platforms like VMware or VirtualBox. While Apple does not officially provide direct ISO files, you can legally obtain the necessary installers through the Mac App Store

Conclusion: Choose Quality Over Speed

Prerequisites:

Method B: Using in a Virtual Machine (Windows/Linux)

hdiutil attach /tmp/MacOS.dmg -noverify -mountpoint /Volumes/macOS

🔒 Security Warning

Modern macOS versions are exclusively 64-bit, starting with the transition that culminated in macOS Catalina , which dropped support for 32-bit applications entirely