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iHavequestions

macrumors 6502
Original poster
Oct 23, 2011
274
14
I see this on my computer and I can't figure out why.
 

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iHavequestions

macrumors 6502
Original poster
Oct 23, 2011
274
14
I used OmniDiskSweeper as shown and not only do disk utility and system settings don't match in terms of what they say is my free space, but it's completely inconsistent they are both incorrect! How do I fix it???
 

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Fishrrman

macrumors Penryn
Feb 20, 2009
28,713
12,831
Another "Fishrrman simplistic answer"™:

Don't rely on what the "storage" panel shows you.
It's notoriously inaccurate.

As maflynn suggests, use a 3rd party app to see what's REALLY there.

I recommend "DiskWave":
It's small in size and free.

Open DiskWave and go to the preferences.
Put a checkmark in "show invisible files".
Close preferences.

The DiskWave window shows you all your volumes and drives in plain English (no ridiculous graphical formats).
Click on any item "on the left".
Now, you'll see what's ON the volume, listed in order of "largest to smallest".
You can easily locate what's eating up your space.
 

mfram

Contributor
Jan 23, 2010
1,326
364
San Diego, CA USA
What is "disk19s1" in the DiskUtility picture? It appears to be another APFS sub-volume of the "Macintosh HD" group. What's the size of that and how did it get there? That could be the difference.
 

iHavequestions

macrumors 6502
Original poster
Oct 23, 2011
274
14
Why do I need to download and use another? I already followed one suggestion and did a 3rd party app.
 

groundcontrol

macrumors regular
Mar 20, 2014
135
131
Toronto, ON, Canada
I have been having this same issue. Thank you @iHavequestions for asking this here. It’s so strange. I deleted 230 GB+ of files and the free space in Disk Utility actually decreased from what it said before I deleted files.

I called Apple about this and they had me click on the Apple logo in the top left, then About this Mac, then on the storage tab and there it showed me a much more accurate reading of the free space on my machine. Using the “manage” button on that screen gave me useful tools for searching for and removing large unwanted files.

Apple never explained why there is such a massive differential between Disk Utility and the above method I just mentioned, but it was a huge relief to see that I am actually freeing up space. If others can explain the reason please do. Hope this is somehow helpful anyhow.
 
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