How to Run First Aid with Disk Utility

Written By: Mike
  • Comments: 2
How to Run First Aid with Disk Utility

Difficulty

Easy

Steps

6

Time Required

15 minutes

Introduction

First Aid is a great tool for helping fix various issues relating to replacing parts on a Mac.

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    • Open Disk Utilities, which can be found in the Applications folder under Utilities

    • Pro Tip: Take the shortcut and use Spotlight. (This method is used in this guide)

    I am using MacOS 12.1 The disk utility menu options don’t match the illustrations in this guide. Mine displays (1) Apple SSD, (1.1) Container Disk 1, (1.1.1) Macintosh HD, (1.1.1.1) Macintosh HD - Data. No matter which one I select, it does not display the SSD storage with the legends in the illustration. I am assuming this must be from a prior MacOS.

    pahd70 -

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    • Once the Disk Utility App opens, click the "View" menu.

    • Select "Show All Devices"

    • Older versions of macOS may not have this button. If so, skip to the next step.

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    • In the Sidebar, click the last volume in the list.

    • By default it will likely be named "Macintosh HD - Data" or simply "Macintosh HD" on Macs running 10.14 Mojave or earlier.

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    • Click on the First Aid button at the top of the window.

    • A dialogue box will appear asking if you would like to run First Aid.

    • Click "Run".

    • A second dialogue box will pop up prompting for acknowledgement that verifying your startup disk will cause it to be non-responsive.

    • Click “Continue”.

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    • This procedure will take a few minutes to complete. The machine may freeze up, or lock up during this procedure.

    • Patience is key here.

    • Disk repair may fail, or give an error message. Restart your machine and run it again if this is the case, it may repair further issues.

    • Once completed, click done.

    • Pro Tip: To see the entire process including corrected errors, click on the arrow next to 'Show Details'.

    • Repeat this on all items in the Disk Utility list for your internal drive. Move upward through the list. Order of operations is all volumes first, then the container and finally the disk itself.

    Hi, I've run disc First Aid twice now, and it still says it found corruption that needs to be repaired. To repair the startup volume, run First Aid from Recovery, but I don't know how to do that. Can you tell me where to go from here?

    Johanna Braat -

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    • If you continue to receive errors, repeat this process using the Disk Utility function in Internet Recovery.

Conclusion

Close Disk Utility, and the internal drive should be ready to go.

Author

Mike

Member since: 01/11/10

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