Bootable Flash Drive Creator

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Applies To: Windows Server 2016 Essentials, Windows Server 2012 R2 Essentials, Windows Server 2012 Essentials. To create a bootable USB flash drive for use in recovering or reinstalling Windows on a PC instead of a server, see Create a recovery drive. Insert a USB flash drive into a running computer.

Open a Command Prompt window as an administrator. In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk, and then click ENTER. The list disk command displays all the disks on the computer.

  1. Note the drive number or drive letter of the USB flash drive.

At the command prompt, type select disk , where X is the drive number or drive letter of the USB flash drive, and then click ENTER.

Method #3: Make Bootable USB from ISO using RMPrepUSB

Type clean, and the click ENTER. This command deletes all data from the USB flash drive. To create a new primary partition on the USB flash drive, type create partition primary, and then click ENTER. To select the partition that you just created, type select partition 1, and then click ENTER. To format the partition, type format fs=ntfs quick, and then click ENTER.

If your server platform supports Unified Extensible Firmware Interface (UEFI), you should format the USB flash drive as FAT32 rather than as NTFS.

To format the partition as FAT32, type format fs=fat32 quick, and then click ENTER. Type active, and then click ENTER. Type exit, and then click ENTER.

When you finish preparing your custom image, save it to the root of the USB flash drive. Creating USB driver in the latest Windows version has become a lot easier with the in-built ISO burners. Gone are the days when you used to download an ISO image file of the operating system and burn it into CD/DVD.

USB flash drives has completely destroyed the usage of CD/DVDs and the main reason is its size, speed and portability. Bootable USB drivers simply means that you are preparing a USB flash drive to install an operating system. Essentially, creating bootable USB drivers to install operating system of your choice varies from each Windows and Mac versions. In this short guide, we will show how to make or create a bootable USB from ISO file on all Windows version computers. Making a bootable driver is not similar to copying an ISO image file directly on the USB flash drive.

Before creating a bootable USB from ISO, please remember to backup all data contained on your USB flash drive as using any trick from this guide will entirely wipe the data from your USB drive.

  1. If you're locked out of Windows 7 and can't recall the password at all, don't worry, resetting Windows 7 password will be extremely easy with the help of Windows Password Recovery Pro.
  2. This part can be applied from any Windows version including Windows 10, 8, 7, XP and other older versions.
  3. It is indeed an old-fashioned method but it works like charm all the time.
  4. Here's what to do –. Insert the USB flash drive on the computer and let the computer automatically detect it.
  5. Click on Start and start command prompt.
  6. Type "DISKPART" and press enter to start the disk part utility.


From here, you will have to enter a series of command. First, type "List Disk" to see all the available drivers on the computer. Check the disk number of your flash drive and remember it. Next, type "Select Disk 1" considering Disk 1 is the USB flash driver and press Enter. Now keep on typing these series of commands. - Clean - create partition primary - select partition 1 - active - format fs=fat32.

When the formatting process is completed, simply type "Assign" followed by exit. Now copy all the files of your operating system on to the USB flash drive and it is done. You can now install your operating system using the bootable USB flash drive.

Making a Windows install disk isn't as simple as formatting a drive or copying ISO file to your USB drive on Windows and Mac OS X. You need to use a professional ISO Editor to write the ISO image to your USB instead of copying. Are you confused with the steps mentioned in above parts or they just didn't work?

If that was the case, then it is the time to give a try on iSeePassword WizISO, it's an amazing tool to burn ISO image to USB with a built powerful burning engine.

  1. WizISO a ISO Toolkit which allows you to burn ,extract, edit, create and copy disc without losing the bootable information.
  2. This program provides two partition style MBR and UEFI model which allows you to make UEFI bootable drive. If you want to edit your ISO file,then just import it to the program and directly edit, add, delete, rename your ISO file then save it to a standard ISO format. It supports 200+ USB brands mo matter it is old or new.
  3. The most important part is that it is super easy to use. Please check the tutorial below: . Download iSeePassword WizISO from this website and install it on the computer. (Windows version and Mac version all available). Open the program after installation and the main interface is shown like blow. Click "Browse" button to find local ISO file and add it to computer. Now insert an USB drive to the computer and select the drive name from the list undert "Create A Bootable USB". Finally, click "Burn" button to start the burning process. It will take around 15 minutes to fully write the ISO file to USB.

The actual time is depending on how lagre the file is. After that, you can take out the USB and use it to fix system issues. High success rate with strong burning engine. User-friendly interface that everyone can use it freely. Take less time for burning. Support both DVD and USB as burning media. Automatically detect correct file format before burning. RMPrepUSB is yet another ISO image file burning program that helps to create bootable USB flash drives.

Frequently Asked Questions (FAQ)

It is absolutely free to use and it's an open source tool. Learn how to use Rufus. Download it from the official website and store it on your computer. It's ready-to-use program that needs no installation at all.

  • You can open the program just by double clicking on it.
  • Insert the USB flash drive and let it be recognized by the program automatically. Select the device name that you are using. It is recommended to use an 8 GB flash drive to run everything smoothly.
  • Leave the rest of the options to the default settings and select the ISO image file stored in your computer. Make sure to check "Create a bootable disk" to make the USB driver bootable.
  • Click on "Start" to initiate the burning process and once it is finished, you can eject the flash drive.
  • It now a ready-made bootable USB driver. Quite complicated, not intended for the beginner. Don't support UEFI boot. Don't provide any support. Creating a bootable USB flash drive can be really a hectic task if you don't know the right procedure.
  • Hopefully, you guys were able to create a bootable USB driver by using the methods shared in this guide. If you have any easier method than this then don't forget to share it with us.
  • Stay tuned for more! 25, 2017 17:11:32 pm / Posted byVicky Tiffany to Windows 7 .
  • Rufus is a utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc.
  • It can be especially useful for cases where: . you need to create USB installation media from bootable ISOs (Windows, Linux, UEFI, etc.).
  • you need to work on a system that doesn't have an OS installed.
  • you need to flash a BIOS or other firmware from DOS. you want to run a low-level utility. Despite its small size, Rufus provides everything you need! Oh, and Rufus is fast. For instance it's about twice as fast as UNetbootin, Universal USB Installer or Windows 7 USB download tool, on the creation of a Windows 7 USB installation drive from an ISO.
  • It is also marginally faster on the creation of Linux bootable USB from ISOs. (1) A non exhaustive list of Rufus supported ISOs is also provided at the bottom of this page.
  • Last updated 2022.03.11:. Rufus 3.18(1.3 MB). Rufus 3.18 Portable(1.3 MB).

Windows 7 or later, 32 or 64 bit doesn't matter. Once downloaded, the application is ready to use. I will take this opportunity to express my gratitude to the translators who made it possible for Rufus, as well as this webpage, to be translated in various languages. If you find that you can use Rufus in your own language, you should really thank them! Download the executable and run it – no installation is necessary. The executable is digitally signed and the signature should state: .

Source Code

"Akeo Consulting" (v1.3.0 or later). "Pete Batard - Open Source Developer" (v1.2.0 or earlier). If you create a DOS bootable drive and use a non-US keyboard, Rufus will attempt to select a keyboard layout according to the locale of your system. In that case, FreeDOS, which is the default selection, is recommended over MS-DOS, as it supports more keyboard layouts. All versions of Rufus since v1.1.0 allow the creation of a bootable USB from an ISO image (.iso).

Creating an ISO image from a physical disc or from a set of files is very easy to do however, through the use of a CD burning application, such as the freely available InfraRecorder or CDBurnerXP.

A Rufus FAQ is available HERE. To provide feedback, report a bug or request an enhancement, please use the GitHub issue tracker.

Method #2: Create A Bootable USB using iSeePassword WizISO

Or you can send an e-mail. GNU General Public License (GPL) version 3 or later.You are free to distribute, modify or even sell the software, insofar as you respect the GPLv3 license. Rufus is produced in a 100% transparent manner, from its public source, using a MinGW32 environment. Version 3.18 (2022.03.11) Fix DLL sideloading vulnerabilitiesFix ISO → ESP creation when running on Windows 11Fix an issue when detecting network connectivity when the DHCP service is disabledUpdate FreeDOS to version 1.3Add bypass of Windows 11 restrictions for in-place upgradesAdd Miracle Linux 8 to the list of Red Hat exceptionsOther internal fixes and improvements.

Fix DLL sideloading vulnerabilities.

  • Fix ISO → ESP creation when running on Windows 11.
  • Fix an issue when detecting network connectivity when the DHCP service is disabled.
  • Update FreeDOS to version 1.3. Add bypass of Windows 11 restrictions for in-place upgrades.
  • Add Miracle Linux 8 to the list of Red Hat exceptions.
  • Other internal fixes and improvements. Rufus 3.18(4.5 MB).
  • Alternatively, you can clone the git repository using: .
  • For more information, see the GitHub project.
  • As soon as the green bar is full, click on “Finish”
  • Eject your bootable USB drive with “Safely eject hardware”

Avoid simply pulling the finished bootable USB drive out of the port without using the “Safely eject hardware” option. This could cause you to lose data, since the computer still has access to the storage device and theoretically could still have writing processes underway. With a USB-capable external hard drive, abrupt separation from the computer connection amounts to a system crash on the hard drive.

Benefits Drawbacks
✔ Fast and reliable tool ✘ USB drive formatting necessary
✔ Very small file size
✔ Also supports UEFI
✔ Windows2Go possible

Method #1: Make Bootable USB from ISO Using Command Prompt

The tool WinUSB essentially functions exactly like Rufus, but with two differences: The first is that the creation of a bootable USB is possible without prior formatting (provided there’s enough storage space), so the USB can also be used to store personal files and documents (though it’s recommended to keep a backup copy of all data). Another special feature: As desired, WinUSB can also write multiple different Windows operating systems onto the same drive. This makes it almost an equivalent to the Linux tool Yumi.

With WinUSB, the creation of a bootable USB also takes place in just a few steps:

  • Select your USB with “Plug and select the USB drive”
  • Right-click on “ISO” under “Add Windows”, and then on “Next”
  • Enter whatever label you want for the selected Windows distribution, then click on “OK” and “Next”
  • Click on “Start”
Benefits Drawbacks
✔ No formatting necessary ✘ Only in English
✔ Can write multiple operating systems to one USB
✔ Slim user interface
✔ Various Ubuntu distributions can be loaded


Like the popular tool Universal USB Installer, UNetbootin (short for “Universal Netboot Installer”) is actually specialized for Linux systems. It’s primarily used to install various Linux distributions – such as Ubuntu – on a USB drive so that they can be started directly from the storage media.

UNetbootin also works with Windows:

  • Click on the menu item “Image” – “ISO” is already selected as the source
  • Select your USB under “Drive” and then click “OK”
Benefits Drawbacks
✔ Various Linux distributions to choose from ✘ USB drive formatting necessary
✔ Can create portable operating systems
✔ Also functions with Windows ISO files


File size Formatting necessary?
Rufus 945KB Yes
WinUSB 4.7MB No
UNetbootin 4.6MB Yes


After its successful creation, you can test your bootable USB drive by using it to start your computer. This is also a necessary step to preconfigure BIOS or UEFI for a possible emergency situation.

To do this, you have to change the boot order in the boot menu:

  • Open your computer’s boot menu. Depending on the mainboard manufacturer, this is done by pushing a different key on the keyboard. “Del” is the one most commonly used, but the “F1”, “F2”, “F8”, or “F10” keys can also be used for this function (though rarely any others). Which button you have to push is usually displayed in the margin of the screen as soon as the manufacturer logo appears. But be aware: You only have a short window of time to press the right button. If you miss it, you’ll have to restart your PC and try again.
  • If you have a newer PC, it’s possible that UEFI is installed instead of BIOS as firmware. If this is the case, it’s also possible that no button for starting the boot menu will be displayed. Instead, proceed as follows: Click on “Update and recovery” under “System settings”. Then click on “Recovery” and under “Extended start” select “Restart now”. The computer will now be restarted. On the following screen, click on “Troubleshooting”, then “Extended options” and finally on “UEFI firmware settings” to get to the UEFI.
  • BIOS and UEFI can look different depending on the computer model and have different names for the individual menu items. Don’t be confused by this, though – the structure is basically the same.
  • With the arrow keys, navigate through the BIOS/UEFI. Go to the “Boot” tab (this might also be called “Boot menu”, “Boot manager”, or something similar).
  • There, you can select your USB drive so the next system startup will boot from it.
  • You can also permanently change the boot order by pushing the [Image↑] or [Image↓] keys to change the order of the boot drives. Set your USB drive on the top of the list to start from it as soon as it’s plugged into your computer.
  • Press the [Esc] key to leave BIOS/UEFI.

When you start your PC for the first time, the portable Windows will need a bit more time to boot, since the hardware first has to be detected. While it’s being detected, Windows may also restart several times.

In order to protect your privacy, the video will not load until you click on it.

After a successful boot process, you still have to set up your operating system on the USB drive. This means: Run the Windows setup, establish the internet connection, and download and install all necessary drivers and updates from the internet.

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