MultiOS-USB is a flexible open-source utility designed to create multiboot USB drives capable of hosting multiple operating systems on a single portable device.
The project simplifies the process of creating a bootable USB by automating the configuration of various boot loaders and file systems, allowing users to install and run various operating systems, such as Windows, Linux, diagnostic tools, directly from a single drive.
It supports ISO booting, which allows changes made during live sessions to be preserved, making it ideal for testing, troubleshooting, or system recovery.
Specifications
- BIOS and UEFI support
- Secure Boot support (boot, manage uefi keys)
- Load UEFI drivers
- Launch .efi executables and other boot loaders
- Boot Linux from .iso images
- Boot WinPE from bootable .wim images
- Boot Windows 10/11 installer from ISO (SB must be disabled during installation)
- Boot Linux installer from network (experimental)
- Boot locally installed systems: Linux, Windows
- Automatically update configuration files
- Without background services
- exFAT file system support
- Automatic detection of compatible ISOs (GRUB loopback)
- Support for systems without loopback support
- Allows changes to the ISO boot menu (for example: custom kernel options)
- Supports USB, SSD, nvme, mmcblk, loop, nbd and virtual disks
- Supports x86, x86_64
- List of ISO images that have been tested
Download the format you are interested in
Although the press releases will range from very select to rare, I said I'd pass...because sometimes the editors hide.

