A setup wizard is a guided tool designed to help users configure software or hardware easily. It typically presents a series of step-by-step instructions, allowing users to make selections and input necessary information without needing advanced technical knowledge. This simplifies the installation process and ensures that essential settings are correctly applied. Setup wizards are commonly found in various applications, including operating systems like Windows and macOS, as well as in devices such as smartphones and routers. By breaking down complex tasks into manageable steps, setup wizards enhance user experience and reduce the likelihood of errors during setup.