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SARDU
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SARDU

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SARDU is a multiboot creator built for a multiboot USB drive, a DVD multiboot ISO, or a CD multiboot ISO for a Windows PC.

With the BIOS Legacy and EFI multiboot support, you can boot a PC or a Mac from a USB pen drive and perform maintenance, do a virus scan, recover and save data, install Windows from USB, try or install more Linux Live.

SARDU Screenshot 1

SARDU multiboot creator is a program for Windows and Linux, free (personal and non-commercial use, read the license). Hard disks (internal and external), SSD, USB flash drive, and all removable memory disks and media are supported.

The multi bootable device can include comprehensive collections of antivirus rescue CDs, utilities, and popular Linux live distributions. Windows PE can also be included, as well as recovery disks and install media for Windows XP (Professional, Home, and 64-bit), Windows Vista, Windows Seven, Windows Eight, Windows 10, and Windows 11. SARDU's multiboot menu is divided into five categories: Tools, Antivirus, Utility, Linux, and Windows.

All one has to do is download the desired ISOs with the integrated downloader and use the tool to add them to the multiboot menu. After the multiboot support is built can be tested with the QEMU integrated.

The program is simply the best solution to combine all of your bootable ISOs into one with a simple menu multiboot! That, in turn, can be burned to any device and make it bootable (providing that your BIOS supports it). Basically, this eliminates the need to carry around heaps of different bootable CDs.

It can also be used to build a USB multiboot for installing Windows XP, Windows Vista, Windows 7, 8, 10, or 11, very handy for when there is no optical drive available, like tablets or netbooks.

How to Use
  • Extract the ZIP file to your preferred folder
  • Run the SARDU executable file
  • Register for free to unlock more features
  • Download ISO files using the built-in downloader or add them manually
  • Insert and detect your FAT32-formatted USB drive
  • Select which ISO files to include on the USB
  • Click "Create USB" to build your MultiBoot drive
  • Set your PC to boot from the USB in BIOS/UEFI
  • Choose your desired tool from the MultiBoot menu
FAQs

What is SARDU actually used for in practice?
SARDU is a multiboot USB creation tool that lets you combine multiple ISO files (Windows installers, Linux distros, antivirus rescue disks, utilities) into a single bootable USB drive. It’s especially useful for technicians who want one universal recovery/install toolkit.

How is SARDU different from tools like Rufus?
Unlike Rufus, which creates a bootable USB for one ISO at a time, SARDU allows you to build a multiboot environment with many tools on one drive. This makes it more complex but far more powerful for troubleshooting and system maintenance.

Does SARDU support antivirus and recovery tools?
Yes. One of its strengths is integration with various rescue environments, including antivirus boot disks and recovery utilities, allowing offline virus scanning and system repair from a single USB.

Is SARDU still relevant in 2026?
Yes, but for a specific audience. In 2026, it remains relevant for IT professionals and advanced users, while casual users often prefer simpler tools unless they need a full multiboot toolkit.

System Requirements
  • Operating System: Windows 7, 8, 10, or 11
  • Processor: 1 GHz or faster
  • RAM: Minimum 512 MB
  • Storage: 100 MB of free disk space
  • USB Drive: FAT32-formatted with enough capacity
PROS
  • Supports multiple bootable ISOs on one USB
  • No installation required; portable app
  • Built-in ISO file downloader
  • Works with BIOS and UEFI systems
  • Free registration gives extra features
CONS
  • Free version limited to BIOS Legacy boot
  • Some ISOs need manual setup
  • The interface may confuse beginners
  • May trigger antivirus warnings
  • Limited support for uncommon ISOs
Note: Limited functionality in the demo version.

Download SARDU Latest Version
Why is this app published on FileHorse? (More info)

  • SARDU 6.0.0 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    SARDU 6.0.0 Screenshot 1
  • SARDU 6.0.0 Screenshot 2

What's new in this version:

SARDU 6.0.0
- This update represents a major milestone, featuring thousands of new lines of code and extensive architectural improvements. We have significantly refactored the core logic to enhance stability, performance, and hardware compatibility
- This release is now officially signed with an Extended Validation (EV) Code Signing Certificate, ensuring the highest level of security and seamless installation on Windows systems

Added:
- Implemented exception handling for improved application stability
- Enhanced device discovery logic using unique partition identifiers (UUIDs) to prevent mounting conflicts
- Support for Arch systemd-based derivatives
- Support for CachyOS
- Support for PearOS
- Support for Gentoo Live Gui
- Implemented automatic update mechanism for QEMU
- Added a safe removal prompt upon completion of USB creation to prevent partition corruption (dirty bit)

Changed:
UI/UX Performance:
- Completely refreshed icon set for a more modern and intuitive visual experience
- Enhanced graphical interface management for a smoother user experience
- Optimized the extraction interface graphics: progress bars now update accurately and display real-time status correctly
- Boot Speed: Optimized the software startup sequence, significantly reducing load times
- ISO Configuration Persistence: Improved the logic for saving selected ISO choices and streamlined the re-importation process

Improved:
Barrosu Module Overhaul:
- Completely rewritten from scratch to version 2.0, introducing a major innovation in multiboot management
- Expanded UEFI MultiBoot support for multiple Windows installers > 4GB on NTFS partitions. (Testing)
- Expanded UEFI MultiBoot support for multiple Windows installers > 4GB on exFAT partitions, powered by a custom-developed native driver. (Testing)

USB Drive Management:
- Discovery: Refined and accelerated the USB device detection and search algorithm
- InfoUSB Module: Completely rewritten from scratch to support guided dual-partitioning, single partition restoration, and flexible single or dual-drive formatting
- Formatting: Enhanced the reliability and speed of the USB formatting process by integrating the standalone "Balente FormatFat32" core engine, enabling native FAT32 formatting for large USB drives above 32GB and up to 2TB
- Partitioning: Optimized the USB partitioning logic for better compatibility and performance
- Partitioning: Standardized single-partition restoration to automatically rebuild the MBR for FAT32 drives, seamlessly converting multi-partition GPT structures or repairing corrupted boot sectors
- Large ISO Support: Optimized handling of ISO files > 4GB by automatically leveraging the secondary NTFS/exFAT partition, bypassing FAT32 file size limitations

QEMU Bootable USB Testing:
- Multi-Architecture Support: QEMU now handles USB boot testing across Legacy BIOS, UEFI64, and UEFI32
- Optimization: Enhanced overall stability and management during virtualized testing
- Completely rewritten from scratch the environment validation logic to detect and log security software interference or external process locks blocking SARDU's execution
- Completely rewritten from scratch the internet connection check to accurately detect online or offline status
- Completely rewritten from scratch Uninstall Function to integrate a new detection logic for identifying and removing "ghost folders" and residual files left by previous installations
- Heuristic Menu Translation: Refined conversion logic between bootloaders (Syslinux ↔ GRUB2, GRUB2 ↔ GRUB4DOS, and systemd-boot → GRUB2)
- Enhanced dual-partition USB boot management, enabling seamless ISO loading from NTFS and exFAT partitions
- Enhanced log management and verbosity
- Enhanced update check for managed ISOs
- Removed Legacy restrictions on non-UTF8 characters in file paths
- Orphaned ISO Link Validation: Completely rewritten checking mechanism for better database integrity and faster link validation
- Updated]
- GRUB2 to 2.12 rc1
- TestDisk & PhotoRec to 7.3 WIP
- PassMark Memtest86 to 11.7 (UEFI)
- Memtest86+ to 8.10 (UEFI and BIOS Legacy)
- EFI Clover to 5167
- rEFInd to 0.14.2
- grub4dos to 0.4.6a 2026-05-28
- grub4dos for UEFI 2026-05-07
- Security Libraries: Migrated from deprecated ssl_openssl to OpenSSL 3.x for enhanced encryption and modern protocol support
- QEMU Graphical Interface: Refreshed UI control to easily configure RAM allocation and video card emulation
- Updated SARDU_1
- Updated ISO DB

Security:
- Switched to a new Extended Validation (EV) Code Signing Certificate for improved software integrity and trust

Important Notes:
- Please disconnect the USB drive properly to prevent a "dirty bit" flag, which can force partitions into read-only mode during USB boot
- It is highly recommended to recreate the bootable USB from scratch, as the ISO uninstallation and cleanup management has been completely overhauled


SARDU 5.5.0
- Critical Updates for GUI with Display Scale (solve exceptions)
- Improved GUI with high video resolutions
- Added Reset Graphics voice to Menu File
- Updated TestDisk & PhotoRec 7.2 Data Recovery
- Upgraded development environment
- Improved format USB
- Updated SARDU_1
- Updated ISO DB
- Improved graphics
- Improved User experience
- And ... more.


SARDU 5.4.0
- Critical updates for random exception
- Fixed exception with charger.xml corrupted
- The SARDU form now has a minimum width and height. (fixed exception with window below minimum size)
- The width and height of the form are saved and restored at startup
- The width of the columns (Tab Antivirus, Utility, Linux and Windows) are saved and restored at startup
- Reset Settings (menu File) additionally resets the width and height of the form and columns
- Updated SARDU_1
- Updated ISO DB
- Improved User experience


SARDU 5.3.0
- Updated PassMark Memtest86 to 11.0 (UEFI)
- Updated Memtest86+ to 7.00 (UEFI and BIOS Legacy)
- Updated grub4dos-for_UEFI-2024-02-26
- Updated rEFInd to 0.14.2
- Updated SARDU_1
- Updated ISO DB
- Added check to detect removed USB
- Improved format USB
- Improved User experience
- And ... more.


SARDU 5.2.0
Fixed:
- language problem for license acceptance
- single download for free and registered users
- division by zero searching pendrive USB
- error formatting the two partitions

Updated:
- rEFInd to 0.14.1
- PassMark Memtest86 to 10.7 build 1000 (UEFI)
- Memtest86+ to 7.00 (UEFI and BIOS Legacy)
- grub2 EFI files
- SARDU_1
- ISO DB

Improved:
- windows boot from UEFI
- User experience


SARDU 5.1.0
Fixed:
- critical error when starting windows PE and installer from UEFI due to the new ShellEfi
- update warning issue with SARDU 5
- html error in report
- error with duplicate languages with SARDU 5

- Updated SARDU_1
- Updated ISO DB


SARDU 5.0.1
Fixed:
- critical error when starting windows PE and installer from UEFI due to the new ShellEfi
- update warning issue with SARDU 5
- html error in report
- error with duplicate languages with SARDU 5

- Updated SARDU_1
- Updated ISO DB


SARDU 5.0.0
- Rewrote thousands of lines of code
- Improved USB search
- added heuristic conversion from Grub2 (UEFI) to Grub4dos (Bios Legacy)
- Added suport for Linux Ubuntu and Debian derived larger than 4 GB. (USB Flash Drive with two partitions)
- Added Linuxfx ,Parrot Security, Ubuntu Studio, Tsurugi Lab and more ISO > 4 GB
- Fixed single download for Free users
- Improved USB Info
- Updated Grub4dos UEFI
- Updated EFI Shell
- Updated Memtest to 10.6 (UEFI)
- Updated SARDU_1
- Updated ISO DB
- Improved GUI
- Improved User experience


SARDU 4.4.1
- Fixed exception after db updates with USB searched
- Improved format USB
- Updated Memtest86 to 10.5
- Updated internal engine
- FIxed error with last Ubuntu 23.04
- Updated SARDU_1
- Updated ISO DB
- Improved GUI
- Improved User experience


SARDU 4.4.0
- Fixed exception after db updates with USB selected
- Fixed error with MemTest86+ 6.x (BIOS Legacy Boot)
- Updated Memtest86 to 10.4 (UEFI Boot)
- MemTest86+ to 6.2 (Bios Legacy and UEFI Boot)
- Updated rEFInd to 0.14.0.2
- Updated the software certificate valid until 2026
- Improved USB recognition


SARDU 4.3.1
Fixed:
- critical issue for MultiBoot ISO creation
- background and tools issue in creating USB MultiBoot


SARDU 4.3.0
Updated:
- Memtest to 10.2 build 1000 (UEFI)
- Memtest86+ to 6.10 (UEFI + Bios Legacy )
- ISO manage to support Fedora >37 from Legacy Bios Boot
- the database of managed ISOs
- and improved language management (translations)

- Improved ISO name recognition
- Fixed Exception when the USB combo is empty


SARDU 4.1.0
Updated:
- GRUB4DOS (BIOS Legacy)
- GRUB4DOS UEFI
- Memtest EFI to 9.4
- Refind to 0.13.3.1
- second partition creation
- FreeDos to 1.3

- Improved USB partition creation
- Improved ISO management
- Now SARDU manages and formats ExFat USB flash drive


SARDU 4.0.0
- Upgraded the Development environment
- Updated MemTest86 to 9.3
- Updated Refind to 13.2
- Updated grub4dos UEFI
- Added ability to build two partizion
- Added ability to manage unmodded Windows 11 ISO (testing). Needs USB Flash Drive with two partitions *
- Added suport for Windows installer ISO larger than 4 GB Needs USB Flash Drive with two partitions *
- Added FreeDOS 1.3 RC4
- Added suport to Linux Garuda and official derived
- Update FAT32 format
- Improved the management of the name of ISO files rewritten from scratch the creation of UEFI menus
- Since Microsoft changes versions and checks frequently it doesn't necessarily work perfectly
- In our tests it worked without changing the ISO
- Windows upgraded are only for SARDU for Windows


SARDU 3.4.3
Fixed:
- Error with Windpows Pe =>2 x86+x64 (bootia32.efi+bootx64.efi)
- error with Strelec from Legacy

Updated:
- refind to 13.1 (UEFI)
- Plop to 5.0.15 (BIOS Legacy)
- Memtest UEFI to 9.0 (UEFI)
- Language management

Added:
- tools CmosPWD (BIOSLegacy)
- support to GRUB4DOS UEFI
- greek language

- Improved GUI
- Improved User experience
- And more...


SARDU 3.4.2
- Updated EFI files
- Updated a lot of ISOs version
- Added and updated function to manage Ubuntu 20.10 and later
- Added in Tools section Hardware info Test debug.lua (BIOS legacy)
- Improved GUI
- Improved User experience
- And ... more


SARDU 3.4.1
- Updated memtest to 8.4
- Updated memtest+ to 5.31b
- Updated grub2
- Added support to UEFI for Windows seven Installer
- Added hostname check for automatic renaming of user panel PCs
- Fixed error adding ISO already present in download queue
- Fixed and Improved ISO Filters
- Fixed exception if USB is not present
- Fixed Error with Acronis True Image
- Fixed error for Windows 10 AIO booting 32 Bit version


SARDU 3.4.0
- Updated the ISO database (2020 march 26)
- Completely rewrote startup from UEFI
- Fixed ISO download error from github
- Improved ISO removal
- Improved Windows installation from USB using UEFI
- Added UEFI Interactive Shell to v2.2
- Added CLOVER UEFI
- Added menu with UEFI choice (GRUB2, rEFInd and Clover)
- Updated UEFI GRUB 2 to 2.04-5
- Updated rEFInd to 0.12.0
- Updated Memtest86 to 8.3
- Improved GUI
- Improved User experience


SARDU 3.3.0
- Software startup is faster
- The ISO lists update is faster
- ISO Refresh is faster
- Prevent inserted ISO with spaces from breaking
- Fixed esception modifying Extra
- Fixed error with EFI boot Sergej Strelec
- Updated Grub4DOS to 0.46a
- Fixed 2485 error
- Fixed errors downloading useful software
- Updated syslinux to 6.04 pre3
- Updatet Refind to 0.11.4
- Updated MemTest to 8.2
- Updated 7z to 19
- Improved UEFI menu
- Registered users now can build CD and DVD ISO
- Improved format USB
- Improved GUI
- Improved User experience
- Added ability to customize the version with the name of the magazine that redistributes SARDU attached to the magazine


SARDU 3.2.4
- Fixed Error adding windows without line selection
- The update is faster
- Software startup is faster
- ISO Refresh is faster
- Improved GUI
- Improved User experience
- Added Russian language
- User with a older than SARDU 3.2 version, have to build the USB with Windows Installer from scratch


SARDU 3.2.3
- Added FreeDos 1.2
- Updated wget
- Added uninstall ISO Windows (only pro versions)
- Fixed Windows XP Installer with direct extraction
- Added support to Kaspersky Rescue Disk 2018
- Updated Super Grub2 disk to 2.02s9
- Updated MemTest86 EFI to 7.5.0
- Updated Refind to 0.11.2
- Improved registration
- Improved GUI
- Improved User experience
- User with a older than SARDU 3.2 version, have to build the USB with Windows Installer from scratch


SARDU 3.2.2
- Removed limit nome iso duplicated in extra management
- Fixed error with Nur_Ext corrupted (Linux Version)
- Update SuperGrubDisk to 2.02s9
- Update Refind to 10.7
- Added portuguese language

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