Why is my iMac’s hard drive full when I don’t know what’s using the space?

Hi, I just don't understand what is going on with my iMac. I will include a photo of what I see to make it clear for you to understand. I do need help with it as you can imagine! thanks for help.


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iMac 27″, macOS 11.7

Posted on May 31, 2025 12:58 PM

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Posted on May 31, 2025 5:38 PM

It looks like you have two different partitions/Containers since the APFS information differs between the two volumes. This usually means you have two installations of macOS, or you reinstalled macOS incorrectly at some point. As @D.I. Johnson mentions, we really need to see the left pane of Disk Utility to truly understand the drive layout. Just make sure to click "View" within Disk Utility & select "Show All Devices" so that the physical drive and hidden Containers appear on the left pane of Disk Utility.


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Why is my iMac’s hard drive full when I don’t know what’s using the space?

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