In the chapter, you learn some maintenance tips that will help keep your computer running smoothly and keep your files safe. As Apple frequently releases critical security updates and patches that should be installed quickly, we'll talk first about automating system software updates. Then, we'll discuss the importance of backing up your files so you won't loose all of your hard work and important data in the event of system disruption. We'll also touch on use of commercial software to optimize your hard drive. Finally, we'll check out a built-in tool for monitoring the effort expended by your system.