If you want to start up again from the disk you erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions to reinstall m acOS.Quit Disk Utility to return to the utilities window.After the erase is done, select any other internal volumes in the sidebar, then click the delete volume (–) button in the toolbar to delete that volume.ĭuring this step, disregard any internal volume named Macintosh HD or Macintosh HD - Data, as well as any volumes in the External and Disk Images sections of the sidebar.Click Erase. However, if you see an Erase Volume Group button, click that button instead. Luckily, any Mac that was able to run OS X Yosemite can also run OS X El Capitan, but for your reference, here’s a list of Macs that support OS X El Capitan.
#HOW TO REFORMAT MACBOOK PRO EL CAPITAN MAC OS#
Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility If you have been having some issues with your MacBook Pro like noticeable slowdowns, applications frequently crashing, or programs refusing to work altogether, one of the solutions that you might.Click the Erase button in the toolbar, then enter the requested details:.When Disk Utility loads select the volume (indented entry, usually. When the Utility Menu appears: Select Disk Utility from the Utility Menu and click on Continue button. Select Macintosh HD in the sidebar of Disk Utility. Immediately after the chime hold down the Command and R keys until the Apple logo appears.From the utilities window, select Disk Utility and click Continue.If asked, select a user you know the password for, then enter their administrator password.Start up from macOS Recovery: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R.