macos first aid volume could not be unmounted

Your Mac will then boot into macOS Utilities. Fix 4: Run Disk Utility’s First Aid in Safe Mode If it doesn’t, please try again.Ģ) Select your language and then click the continue button.ģ) Select Restore From Time Machine Backup, then Contimue.ĥ) Select Time Machine Backups, then Continue.Ħ) Select the most recent backup, then Continue.

When there’s any error occurring in your Mac’s volume, you may also receive this error. You can follow this method to run the Disk Utility to check for errors and repair the volume if necessary.ġ) Hold down the power button to shut down your Mac. Once you do, hold down the power button to turn on your Mac. Immediately, press the Shift key, your Mac will then boot into Safe Mode.Ģ) Log in the system using your credentials. You’ll see the login screen displaying with the Safe Boot character.ģ) On the Home screen of your Mac, click Go, then select Utilities.ĥ) Click First Aid, then Run to start to check the volume for errors.Ī) Choose your main HDD as the volume to be repaired if you have not only one volumes on your Mac.ī) Click Continue if you see the prompt saying First Aid needs to temporarily lock the boot volume.Ħ) First Aid will then check the volume for errors and repair the volume if necessary.ħ) Once the repair has completed, rerun the macOS update program or the reinstall process and see if you get out of the error message. MAC OS VOLUME COULD NOT BE UNMOUNTED UPDATE If unfortunately, you tried all the above methods, but to no avail, don’t give up hope. If there’re not enough available storage on your Mac for update, the error may also happen.

In this case, you can try to free up some storage space on your Mac.ġ) Delete all the files that you no longer need: you can move those files to the Trash, then empty the Trash. MAC OS VOLUME COULD NOT BE UNMOUNTED FREE

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Macos first aid volume could not be unmounted