Insert the Mac OS X Install disc, then restart the computer while holding the C key.How do I reset my 2010 iMac to factory settings? Choose the “Disk Utility” option from the list and click “Continue.” Select and connect to a Wi-Fi network from the list if the iMac prompts you to do so.
Restart the iMac and hold the ” Command-R” keys while the computer reboots. How to Factory Reset an iMac Via the Recovery Partition. How do I factory reset my iMac g4 without CD? The Mac will display the macOS Utilities menu, from which you can reinstall Mac OS. How do I force a factory reset on my iMac?Īfter the iMac shuts down completely but before it begins to restart, hold down the Command (⌘) and R keys at the same time.
Open the Disk Utility menu when the reformatting process is finished, and click “Quit Disk Utility.”Ĭlick on “Reinstall Mac OS X” to begin the process of installing a fresh copy of the operating system. Set the format type to “Mac OS Extended (Journaled),” and then enter a name for the hard drive that will be reformatted. Go to the Erase tab at the top of the window. Highlight your MacBook’s internal hard drive from the list on the left side of the window. Restart your MacBook and hold down the Command and R keys when the gray startup screen appears.Ĭlick on the “Disk Utility” option and then click “Continue.” Before reformatting the MacBook, make sure to back up all data that you want to retain. For example, if you need to reinstall Mac OS X on a MacBook in your office and want to clear all the data off of the computer, you can use Disk Utility to reformat the laptop’s internal hard drive. The latest versions of the Mac OS X operating system are not available as DVDs, but you can still boot your computer to an installation volume and run different Disk Utility operations. Macbook or IMac running slow? It may by time for a Format…
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