How To Use UltraISO Software To Create Bootable USB Flash Drive

There is no doubt that UltraISO is one of the finest software available to create and burn ISO files. There are also options to create bootable CD/DVDs and edit ISO files in the software. But did you know that you can even use UltraISO software to create a bootable USB to install Windows 7 or Windows 8 from USB flash drive?

Want to create a bootable Windows USB flash drive to install Windows without using DVD? Do you still use the good old UltraISO software to burn ISO files to CD or DVD? Then you use the UltraISO software to create bootable USB flash drive with a few clicks.

We know that there are many free alternatives available to create to bootable Windows USB flash drive. Even one can use the Command Prompt to install Windows 7 or Windows 8 from USB flash drive. But the purpose of this post is to let the UltraISO users know about the a superb functionality present in their favorite ISO burning software.

Here is how to use UltraISO software to create bootable USB drive:

Step 1: Download and install UltraISO software on your PC. Even though UltraISO is a paid software, you can download the free 30-day trial version to make your USB bootable.

Step 2: The next step is to run UltraISO trial version with admin rights. Right-click on the UltraISO software shortcut on the desktop or Start menu entry, and select Run as administrator option. If you are prompted with Register Now screen, click Continue to Try.. button to use the trial version.

Use UltraISO To Make USB Bootable Step1

Step 3: In the home screen, click File > Open option to browse to your Windows 7 or Windows 8 ISO file.

Use UltraISO To Make USB Bootable Step2

Use UltraISO To Make USB Bootable Step3

Step 4: Next, in the home screen of UltraISO, click on Bootable menu and then click Write Disk Image option to launch Write Disk Image dialog box.

Use UltraISO To Make USB Bootable Step4

Step 5: In the Write Disk Image dialog, select the Disk Drive as your USB flash drive, select the write method as USB-HDD before hitting the Format button. It will then launch Format Removable Disk dialog, where you need to simply click Start button to begin formatting the flash drive. Please backup all data from the USB device before hitting the Format button.

Write Disk Image

Use UltraISO To Make USB Bootable Step5

Use UltraISO To Make USB Bootable

Step 6: Once the format in done, click Write button and then click Yes for the warning prompt to start the process. When the writing is finished, you will see Burn Successful message event list. Close UltraISO software and connect your USB to a machine to start installing Windows.

Use UltraISO To Make USB Bootable Step6

Use UltraISO To Make USB Bootable Step7

Use UltraISO To Make USB Bootable Step14pg

If you want to test the bootable USB before using it to install Windows, please follow our how to test a bootable USB guide.



  1. Yes No says

    I think should be USB-HDD+ (as in the picture) instead of USB-HDD, in the written explanation. I tried USB-HDD the first time, it took me hours to write it, opposed to the few minutes it takes with USB-HDD+.

  2. David B says

    Trying to make an acronis rescue disk bootable from a usb. i get “warning usb disk from iso may not boot properly”USB not bootable

    Does it only work with windows iso?

  3. zoyeb says

    after successful burn i installed win 8 but my 4 gb sanDisk usb drive now write protected. i am unable to format my usb drive.

  4. Ken says

    Trying to make Bootable Flash drive for Dell Mini 1018 with Win7
    On Mini 10 changed BIOS to boot in following order:
    USB Storage
    Removable Devices
    Hard Drive

    Steps followed using UltraISO:
    1.Made Iso from Win 7 disk to hard drive on Dell 64 bit hard drive.
    2.Made Flask drive using “Bootable/ Write disk Image” from Iso on hard drive
    3. Put flash drive in previously prepared Dell Mini 1018 32 bit and powered on.
    4. Mini 10 went through Dell Start-up and started scrolling the following:

    No Systemdisk. booting for harddisk
    Start booting from USB device…
    Disk formatted with UltraISO 9.0 (c) 2002-2008 EZB Systems, Inc.
    Bootsector from C.H. Hochstatter

    Finally stopped scrolling after second line of above

    No Systemdisk. booting for harddisk
    Start booting from USB device…

    Does not Boot.



  5. sanwal says

    i am facing admin issues . i shall be very thankful to u guys if u fix this problem

  6. Edward says

    Having a slight problem here!I followed the process of writting a file to a USB flash,but when I hit the write key,it displayed;”you need admin priviledges to run this operation…Please I need a helping solution..Thanks

  7. Suraj says

    Thank u very much for the help.

    San lee, you can run the ultraiso by right clicking on it and selecting “run as administrator” and then follow the steps given above.


  8. aditya says

    can i use that USB flash drive to store further files after creating bootable flash drive. Need help.
    i dont want loose my further 20Gb’s of space. i am having 32GB pen-drive.

  9. aliraza says

    Thank u OP…
    I’d a problem that was “You need admin privileges to run this operation.”
    and solved by OP

  10. Apaar says

    Thanks OP !!!
    Thanks everybody….

    I was facing the same ‘Admin Provildges’ issue, and your one line answer was exactly I needed to resolve it. Thanks again.

  11. Fosu Emmanuel says

    if you using the ultra iso and it tells you ,you need administrator what would u do.

  12. Kirasky says

    How about removing the written image on the usb after that cos its taking up space and even after format the space is still used up for it

  13. Sunil Kaanta says

    thanks for giving me updated information , kindly send me hacking releted information .
    thank you once again

  14. san lee says

    i done all the things correctly but after i hitting write option to burn usb flash drive. it shows that “you need admin privileges to run this opertion…help me…

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