Description: A bootable USB is a flash drive that contains an image of an operating system that can be used to start a virtual machine or a physical computer. This type of device allows users to load a complete operating system from the USB drive instead of relying on the computer’s hard drive. In the context of virtualization and system repair, tools like VirtualBox, KVM, and QEMU can use bootable USBs to facilitate the installation of operating systems in virtual environments or recovery environments. The ability to boot from a USB is particularly useful for testing, system recovery, and deploying operating systems on multiple machines. Bootable USBs are versatile and can contain various distributions of operating systems, such as Linux, Windows, or even diagnostic tools. Additionally, their portability allows users to carry multiple operating systems on a single device, making installation and use in different work environments easier. Creating a bootable USB typically involves using specialized software that copies the operating system image to the drive and configures it to be bootable, ensuring that the operating system loads correctly in the virtual or physical machine.
