Disk Utility disappeared! - can't update

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Level 1

5 points

Disk Utility disappeared! - can't update

Hello - I am trying to install the latest update (10.10.5), but it says it can't proceed until I quit Disk Utility, which does not appear as open on the desktop.

I have tried 'Force Quit' but this doesn't work, though Disk Utility

Also I notice that the Disk Utility icon has actually disappeared from the Utilities menu! Is there any way of reinstalling it?

Where do I go now?

Ian

MacBook Pro 13" Retina 8Gb, mid-2014, Yosemite 10.10.4

MacBook Pro with Retina display, OS X Yosemite (10.10.2), Purchased Dec 2014

Posted on Aug 29, 2015 3:10 AM

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Answer 1

Aug 29, 2015 3:14 AM in response to iansp

Open the Activity Monitor located in HD > Applications > Utilities

Select the CPU Tab.

Then select the Disk Utility process then click the gray force quit button (round with an x top left corner of the window).

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Answer 2

Eric Root

Level 10

684,027 points

Aug 29, 2015 10:22 AM in response to iansp

Try restoring Disk Utility from your backup. If that doesn't work, do a backup, preferable 2 separate ones on 2 drives. Boot to the Recovery Volume (command - R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair Disk and Repair Permissions until you get no errors. Then re-install the OS.

OS X Recovery

OS X Recovery (2)

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Answer 3

Aug 31, 2015 1:02 AM in response to iansp

I'm not trying to update, but yesterday, Disk Utility disappeared on my computer, also!

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