Why is my Disk Utility not loading on iMac?

My disk utility is not loading all the way. See screen shot below.

So I want to reinstall because I have an external drive I'm trying to mount, but there's no where on the web to download it.

Suggestions?

iMac, Sequoia 15.4.1


[Re-Titled by Moderator]

iMac 27″, macOS 15.4

Posted on May 5, 2025 12:03 PM

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Question marked as Top-ranking reply

Posted on May 5, 2025 12:24 PM

Have you restarted your Mac lately?

Rebooting is the best first step in troubleshooting.


If a simple reboot of your Mac doesn’t fix things, see if the problem still happens in safe mode.  Use a wired USB keyboard for this. If you have the Magic Keyboard, plug that into the Mac with its charging cable.

How to use safe mode on your Mac - Apple Support 


Safe mode will often correct weird software behavior by forcing the OS to clear caches, do disk repair and other self-maintenance and housekeeping and temporarily disables third-party mods.


Does Disk Utility work properly while in Safe mode?


You can exit safe mode by restarting your Mac normally, then reevaluate the problem.

8 replies
Question marked as Top-ranking reply

May 5, 2025 12:24 PM in response to pritcharddesign

Have you restarted your Mac lately?

Rebooting is the best first step in troubleshooting.


If a simple reboot of your Mac doesn’t fix things, see if the problem still happens in safe mode.  Use a wired USB keyboard for this. If you have the Magic Keyboard, plug that into the Mac with its charging cable.

How to use safe mode on your Mac - Apple Support 


Safe mode will often correct weird software behavior by forcing the OS to clear caches, do disk repair and other self-maintenance and housekeeping and temporarily disables third-party mods.


Does Disk Utility work properly while in Safe mode?


You can exit safe mode by restarting your Mac normally, then reevaluate the problem.

May 5, 2025 1:38 PM in response to pritcharddesign

In fact, @dialabrain's post is

pritcharddesign wrote:

That's ridiculous.

Re: @ dialabrains's previous post, it is absolutely correct as to reinstalling Disk Utility.

The Disk Utility application is a component of macOS, is installed along with the OS and cannot be deleted from the Mac without removing the OS. There is no separate download or installer for Disk Utility.


Reinstalling macOS is often a remedy for trouble on the Mac. Reinstalling macOS lays a fresh copy of the OS on the startup drive, replacing any files that have been corrupted, and includes fresh copies of the apps that come pre-installed on the Mac.

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Why is my Disk Utility not loading on iMac?

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