RELATED: How to Wipe Your Mac and Reinstall macOS from Scratch If your Mac operating system is damaged, this will replace the damaged software with a fresh, undamaged operating system. You can also restore from a Time Machine backup. Use the “Reinstall macOS” option in Recovery Mode to have your Mac automatically download the latest macOS installation files and reinstall its operating system. If the Disk Utility didn’t work, you can reinstall macOS on your Mac. RELATED: 8 Mac System Features You Can Access in Recovery Mode Restore From Recovery Mode The Disk Utility performs an “fsck” (file system check) operation, so you don’t need to run the fsck command manually. If it doesn’t, you probably didn’t press the keys soon enough-restart your Mac and try again.Ĭlick the “ Disk Utility” option, click over to the First Aid tab, and try repairing your Mac’s disk. You should try to press these immediately after you hear the chime sound. Press and hold the Command + R keys during the boot-up process. To access recovery mode, boot your Mac up. Your Mac’s disks may be corrupted, and you can fix this from recovery mode. Issarawat Tattong / Use Disk Utility From Recovery ModeĪssuming your Mac is actually booting up but macOS isn’t loading properly, there’s likely a software problem.

Release the Power button, reinsert the battery, plug in the Mac, and press the Power button to turn it back on. Press the Power button and hold it down for five seconds. With older MacBooks with a removable battery, unplug the Mac from its power source and remove the battery. Plug it back in, wait five more seconds, and then press the Power button to turn the Mac back on. Mac desktops don’t have batteries, so unplug the Mac’s power cord and leave it unplugged for fifteen seconds.

Release all four buttons at the same time, and then press the Power button to turn the Mac on. Press the Shift+Control+Option keys at the left side of the keyboard and the Power button, and hold them all down.

On current MacBooks without a removable battery, plug in the power cable.

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