live USB

A live USB is a portable storage device, like a flash drive, that contains an entire operating system (such as Linux). When plugged into a computer, it allows you to run this operating system directly from the USB without installing anything on the computer’s internal hard drive. This enables users to try out or troubleshoot systems, carry a customized OS with their files everywhere, or securely use a computer without affecting its existing setup. Once unplugged, the live USB leaves no trace on the host computer, making it a flexible and safe way to use an operating system on any compatible device.