This tool can format your USB drive and installs the GRUB based bootloader on it.

You begin by launching Ventoy2Disk.exe tool. This way, you format your USB drive only once and afterwards you can just copy ISO files to that USB drive and it will be ready to boot directly from that ISO file. It uses a different approach – it installs a GRUB bootloader to your USB drive that uses ISOboot to boot directly from the ISO files that you have copied to your USB drive. Ventoy can save you from formatting your USB drives again and again and still gives you a perfectly working bootable USB drive. This means that you lose all the files previously stored on that drive and the process becomes a bit longer because extraction and copying might take a very long time. But Rufus formats your USB drive each time you use it to create bootable USB drives followed by extracting and copying of the ISO image files to the USB drive. Whenever you want to boot from a new version of Windows 10, you have to download the Windows 10 ISO file and then create a bootable USB drive using a tool like Rufus.

Ventoy windows