System Utilities are software tools designed to help manage, maintain, and optimize a computer's performance. They perform various tasks such as file management, system monitoring, and disk cleanup, ensuring that the operating system runs smoothly. Common examples include disk defragmenters, backup tools, and antivirus programs. These utilities can be built into the operating system or available as third-party applications. By using System Utilities, users can improve their computer's efficiency, protect against malware, and recover lost data, ultimately enhancing the overall user experience and extending the lifespan of the hardware.