Rufus (The Reliable USB Formatting Utility, with Source
) is a
free and open-source
Free and open-source software (FOSS) is software available under a Software license, license that grants users the right to use, modify, and distribute the software modified or not to everyone free of charge. FOSS is an inclusive umbrella term ...
portable application
A portable application (portable app), sometimes also called standalone software, is a computer program designed to operate without changing other files or requiring other software to be installed. In this way, it can be easily added to, run, ...
for
Microsoft Windows
Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...
that can be used to format and create bootable
USB flash drives
A flash drive (also thumb drive, memory stick, and pen drive/pendrive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc, and ...
or
Live USB
A live USB is a portable USB-attached external data storage device containing a full operating system that can be booted from. The term is reminiscent of USB flash drives but may encompass an external hard disk drive or solid-state drive, thou ...
s.
History
Rufus was originally designed
as a modern
open source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...
replacement for the HP USB Disk Storage Format Tool for Windows, which was primarily used to create MS-DOS bootable USB flash drives.
The first official release of Rufus, version 1.0.3 (earlier versions were internal/alpha only
), was released on December 4, 2011, with originally only
MS-DOS
MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few op ...
support. Version 1.0.4 introduced
FreeDOS
FreeDOS (formerly PD-DOS) is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running Legacy system, legacy software and supporting embedded systems. FreeDOS ca ...
support and version 1.1.0 introduced
ISO
The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries.
Me ...
image support. Until 1.2.0, two separate versions were provided, with one for MS-DOS and one for FreeDOS.
UEFI
Unified Extensible Firmware Interface (UEFI, as an acronym) is a Specification (technical standard), specification for the firmware Software architecture, architecture of a computing platform. When a computer booting, is powered on, the UEFI ...
boot support was introduced with version 1.3.2,
localization with 1.4.0 and
Windows To Go
Windows To Go was a feature in Windows 8 Enterprise, Windows 8.1 Enterprise, Windows 10 Education Windows 10 Enterprise and Windows 11 versions prior to the May 2020 update, that allows the system to boot and run from certain USB mass storag ...
with 2.0. The last version compatible with
Windows XP
Windows XP is a major release of Microsoft's Windows NT operating system. It was released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct successor to Windows 2000 for high-end and business users a ...
and
Vista
Vista may refer to:
Software
*Windows Vista, the line of Microsoft Windows client operating systems released in 2006 and 2007
* VistA, (Veterans Health Information Systems and Technology Architecture) a medical records system of the United States ...
is 2.18, while the last version compatible with Windows 7 operating systems is Rufus 3.22, as Rufus 4.0 increased the minimum version requirement to require Windows 8 or later.
Features

Rufus supports a variety of bootable
.iso files, including various
Linux distribution
A Linux distribution, often abbreviated as distro, is an operating system that includes the Linux kernel for its kernel functionality. Although the name does not imply product distribution per se, a distro—if distributed on its own—is oft ...
s and Windows installation .iso files, as well as raw
disk image
A disk image is a snapshot of a storage device's content typically stored in a file on another storage device.
Traditionally, a disk image was relatively large because it was a bit-by-bit copy of every storage location of a device (i.e. every ...
files (including compressed ones). If needed, it will install a bootloader such as
SYSLINUX or
GRUB
GNU GRUB (short for GNU GRand Unified Bootloader, commonly referred to as GRUB) is a boot loader package from the GNU Project. GRUB is the reference implementation of the Free Software Foundation's Multiboot Specification, which provides a use ...
onto the flash drive to render it bootable.
It also allows the installation of
MS-DOS
MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few op ...
or
FreeDOS
FreeDOS (formerly PD-DOS) is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running Legacy system, legacy software and supporting embedded systems. FreeDOS ca ...
onto a flash drive as well as the creation of
Windows To Go
Windows To Go was a feature in Windows 8 Enterprise, Windows 8.1 Enterprise, Windows 10 Education Windows 10 Enterprise and Windows 11 versions prior to the May 2020 update, that allows the system to boot and run from certain USB mass storag ...
bootable media. It supports formatting flash drives using
FAT
In nutrition science, nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such chemical compound, compounds, most commonly those that occur in living beings or in food.
The term often refers specif ...
,
FAT32
File Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. Originally developed in 1977 for use on floppy disks, it was adapted for use on ...
,
NTFS
NT File System (NTFS) (commonly called ''New Technology File System'') is a proprietary journaling file system developed by Microsoft in the 1990s.
It was developed to overcome scalability, security and other limitations with File Allocation Tabl ...
,
exFAT
exFAT (Extensible File Allocation Table) is a file system optimized for flash memory such as USB flash drives and SD cards, that was introduced by Microsoft in 2006. exFAT was proprietary until 28 August 2019, when Microsoft published its spe ...
,
UDF and
ReFS
Resilient File System (ReFS), codenamed "Protogon", is a Microsoft proprietary file system introduced with Windows Server 2012 with the intent of becoming the "next generation" file system after NTFS.
ReFS was designed to overcome problem ...
filesystems.
Rufus can also be used to compute the
MD5
The MD5 message-digest algorithm is a widely used hash function producing a 128-bit hash value. MD5 was designed by Ronald Rivest in 1991 to replace an earlier hash function MD4, and was specified in 1992 as Request for Comments, RFC 1321.
MD5 ...
,
SHA-1
In cryptography, SHA-1 (Secure Hash Algorithm 1) is a hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as 40 hexadecimal digits. It was designed by the United States ...
and
SHA-256
SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. They are built using the Merkle–Damgård construction, from a one-way compressi ...
hashes of the currently selected image.
Rufus is capable of downloading retail ISO DVD images of
Windows 8.1
Windows 8.1 is a release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 27, 2013, and broadly released for retail sale on October 17, 2013, about a year after the retail release of its pr ...
, various builds of
Windows 10
Windows 10 is a major release of Microsoft's Windows NT operating system. The successor to Windows 8.1, it was Software release cycle#Release to manufacturing (RTM), released to manufacturing on July 15, 2015, and later to retail on July 2 ...
and
Windows 11
Windows 11 is a version of Microsoft's Windows NT operating system, released on October 5, 2021, as the successor to Windows 10 (2015). It is available as a free upgrade for devices running Windows 10 that meet the #System requirements, Windo ...
directly from
Microsoft
Microsoft Corporation is an American multinational corporation and technology company, technology conglomerate headquartered in Redmond, Washington. Founded in 1975, the company became influential in the History of personal computers#The ear ...
's servers. This ISO download feature is available only if
PowerShell
PowerShell is a shell program developed by Microsoft for task automation and configuration management. As is typical for a shell, it provides a command-line interpreter for interactive use and a script interpreter for automation via a langu ...
3.0 or later is installed, and 'Check for updates' is enabled in the program's settings (on first usage, Rufus prompts the user whether they want to enable the update check or not).
Rufus Security wiki page—Remote script execution
/ref>
See also
* List of tools to create Live USB systems
This is a list of utilities for creating a live USB. Only those listed on Wikipedia are included.
Overview
* " Multiboot" means that the tool allows multiple systems on the USB stick, as well as a bootloader on the USB flash drive to choose which ...
References
External links
* {{Official website, https://rufus.ie/
Portable software
Linux installation software
Live USB
Windows-only free software