Step 5.Now click on 'Create' and let the software take care of the rest. Click 'Browse' button to find the ISO image file from your computer and upload it. Choose the version of Windows i.e Windows 7/8/10. Select the flash drive name from the drop down menu. Here's the guide to follow to burn ISO to USB with YUMI. Another core technology is when you're tying to write ISO image to USB with YUMI, the mbr file will be written into USB drive so that you can can effectively manage systems settings These tools can be used normally after booting. In addition, YUMI also offers multiple system tools including resuce CDs, dos, partition magicians, etc. Although, there are some challenges when you try to burn ISO image files more than 1GB. It's a free ISO to USB software without any complicacies to understand. YUMI is an abbreviation for Your Universal Multiboot Installer.