We have all created bootable USB drives using tools like Rufus for installing a number of operating system. But Rufus creates bootable USB drive containing only one operating system, whether it is Windows 10, Windows 11, or a variant of Linux. So if you want to have installation media for Windows 11, you have to create a USB flash drive containing Windows 11 using Rufus. When you want to have installation media for Ubuntu Linux, you will create a bootable flash drive for Ubuntu and so on.
This means that you should either have dozens of different USB flash drives containing various operating systems, or you should create the USB drive for installation of one or other operating system again and again. In both cases, it becomes very complicated if you want to have ready access to all sorts of bootable media.
Easy2Boot handles this problem and allows you to create a single bootable USB drive containing all of your operating systems, rescue disks and more. Obviously, the number of operating systems will be limited by the storage capacity of the USB drive itself. For example, you can have only Windows 11 and Ubuntu on an 8 GB USB flash drive.
Easy2Boot is very easy to use. All you have to do is launch Easy2Boot, select the target USB drive and click on the Make E2B_Drive button. This will take care of everything like creating partitions on the target drive, copying the files and making it bootable.
Once this is done, and you have to add a new operating system (such as a bootable ISO file) to your USB drive, you can simply copy the ISO file to the _ISO folder on the USB drive. Next time you boot using this drive, it will auto-detect all the ISO files and give you an option to boot from it. You can copy as many ISO image files on your Easy2Boot USB drive as you want depending on its storage capacity. It supports many different type of disk image files such as ISO, WIM, IMA, IMG, VHD, VHDX.
Easy2Boot allows you to test your USB drive using Qemu virtualization software so that you do not have to actually boot using your USB drive. For this, you should install Qemu on your PC, launch Easy2Boot and choose the options for testing with Qemu.
You can download Easy2Boot from https://easy2boot.xyz/.