: The suite typically included installation media for various versions of Windows (from 7 to 11) and popular Linux distributions.
Full installers for Windows 10/11 and lightweight "PE" (Preinstallation Environment) versions for recovery.
: Modern systems use GRUB 2 (Linux) or EasyBCD (Windows) to create a master boot menu, allowing you to switch between systems without reconfiguring BIOS each time.
Ventoy is widely considered the gold standard for multibooting.
> The multiboot is not for computers. It's for minds. Pick a kernel. Any kernel. And remember: there was never only one way to see the world.
Multiboot hard drives let you carry multiple operating systems, recovery tools, and utilities on a single disk. That flexibility is ideal for technicians, enthusiasts, and anyone who needs to boot different environments without juggling USB sticks. This “final” 2021-style guide covers goals, layout recommendations, boot managers, common OS/tool choices, setup steps, and troubleshooting tips — concise and practical so you can build a reliable multiboot HDD.