This will make no changes to the data on the USB flash drive, including the existing ISO files.

However, if you wish to only upgrade to the newer Ventoy version, click Update. This will format the USB drive and remove any data on it. If you wish to make a new installation from scratch, click Install.The application will automatically detect any USB flash drives on the local computer and show it below the Device. Make sure to plug in the USB flash drive and then run the Ventoy2Disk application.Download Ventoy, and extract its files to a separate folder.Steps to Boot from a Multi-Boot USB Flash Drive: Data nondestructive during version upgrade.Highly customizable theme and menu style.Boot configuration file dynamically replacement.Injection files to runtime environment.Menu dynamically switchable between ListView and TreeView mode.Not only boot but also complete installation process.Linux vDisk(vhd/vdi/raw.) boot solution.Most type of OS supported, 700+ iso files tested.Native boot menu style for Legacy & UEFI.FAT32/exFAT/NTFS/UDF/XFS/Ext2(3)(4) supported for main partition.IA32/x86_64 UEFI Secure Boot supported.x86 Legacy BIOS, IA32 UEFI, x86_64 UEFI, ARM64 UEFI, MIPS64EL UEFI supported.Both MBR and GPT partition style are supported.No need to be continuous in disk for ISO/WIM/IMG/VHD(x)/EFI files.Directly boot from ISO/WIM/IMG/VHD(x)/EFI files, no extraction needed.Can be installed in USB/Local Disk/SSD/NVMe/SD Card.Fast (limited only by the speed of copying iso file.You can copy many files at a time and ventoy will give you a boot menu to select them. With ventoy, you don't need to format the disk over and over, you just need to copy the ISO/WIM/IMG/VHD(x)/EFI files to the USB drive and boot them directly. It is an open source tool to create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files.

Multiple ISO files can be placed within the USB and can be booted from. Unlike other tools, one does not need to repeatedly format their USB drives in order to flash a new operating system in it.

Ventoy is an opensource tool used to create multi-boot USB flash drives. But there are times when we want to create a single multiboot USB that can be used to run multiple ISO files and is easy to use. There are many tools like Rufus that are extremely effective and easy to use.

Ventoy multiboot