A Mac computer can be reset to its factory settings in a few different ways. One way is to use the recovery partition on the Mac computer. Another way is to use the Terminal application.

The recovery partition is a hidden partition on the Mac computer’s hard drive that contains the Mac OS X installation files and the tools needed to reinstall the Mac OS X operating system. To access the recovery partition, restart the Mac computer and hold down the Command and R keys until the Apple logo appears.

The Terminal application is a command-line application that can be …