The Restart Command is a function used in computer systems to reboot or refresh the operating system. This command can help resolve issues by closing all running applications and processes, allowing the system to start anew. It is often used when a device becomes unresponsive or when updates need to be applied. In many operating systems, such as Windows or macOS, the Restart Command can be accessed through the main menu or by using keyboard shortcuts. This command is essential for maintaining system performance and ensuring that updates are properly installed, contributing to overall device stability.