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#How to repair mac os x startup disk how to#
#How to repair mac os x startup disk password#

If you used Disk Utility from macOS Recovery, you can now restart your Mac: Choose Apple menu  > Restart. What Is an OS X Recovery Disk The OS X Recovery Disk is a native but hidden recovery volume on your Mac hard drive. The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4 and then APPLE SSD.

Recovery Mode makes it easy to repair your Mac's disk in situations when the machine won't. Keep moving up the list, running First Aid for each volume on the disk, then each container on the disk, then finally the disk itself. The built-in recovery partition on your Mac's startup disk contains recovery tools, like Disk Utility. Meanwhile, most users will launch Disk Utility if their computer won’t start properly. As you can see, there are plenty of methods you can use to boot Mac into Recovery Mode. Note that Disk Utility had a bit of a makeover in Mac OS X El Capitan and. Your Mac will launch into Recovery Mode and you can start fixing your Mac. Enter a name for the volume (I called mine OS X USB), select Mac OS Extended (Journaled) as the Format, and make sure the size is somewhere around 15-16GB. Is your Mac start-up disk is failing or you suspect the MacOS disk is corrupt Are you worried about your files on the Mac storage drive This video will sho. Attach your bootable OS X Recovery Disk to your Mac and select it from the prompt list. Go to the Partition tab and select 1 Partition from the Volume Scheme menu.

#How to repair mac os x startup disk how to#

The Terminal-savvy Mac owners will choose in favor of the command-line fsck utility. Open Disk Utility (Applications > Utilities) and click on your flash drive in the list on the left. HOW TO REINSTALL MAC OS MacOS includes a recovery partition that allows you to easily erase all data on your Mac and reinstall your OS without an installation disc.

#How to repair mac os x startup disk password#

If you're asked for a password to unlock the disk, enter your administrator password.Īfter Disk Utility has finished checking the volume, select the next item above it in the sidebar, then run First Aid again. Users of Mac OS X have two major utilities to verify and repair hard disks or their MacBook Air/Pro and iMac: Disk Utility and fsck.

If the button is dimmed and you can't click it, skip this step for the disk, container or volume you selected.

If there is no Run button, click the Repair Disk button instead.

In this example, the last volume on the disk is Macintosh HD - Data.Ĭlick Run to begin checking the selected volume for errors. For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab.