Wrong free space on mac Sequoia

MacAir M3
After upgrading form Sonoma to Sequoia 15.3 (a few weeks ago) I notice that I cannot get a reliable free (available) space.

As you can see, at the bottom of thescreenshot, it shows 245 GB available: but actually that is the capacity of my disk.

System Prefs > General > Storage shows -


You may notice that, at the bottom, “System Data” shows “Calculating”: it never ends calculating.

Restarting the mac I get the real available space
Screenshot 2025-02-24 at 06.53.03
but after a few minutes or a couple of days, it goes back to 245.

I do not know if this maight be relevant, but the only changings I did after upgrading, was to replace the older xCode with xCode 16.2 (loading only the first default item).
Anybody seeing this happen? Thanks.

Run Disk Tools; make two or three Shotoff, Cait a minute, Power On.

On the other hands, Applications savec Clipborad to disk nowady twhen memory is missing), working with Firefow (sy 1 hour) fownloading stuff, viewing web pages. Hcek the amount of free rooms.
Quit FireFox, reboot and compare the new value…

Yes, I went several times through all what you now suggest. But it is not a problem of free space growing or diminishing. In fact “disk-capacity” (245 Gb) takes the place of free available space. Untill I do what also you suggest, or untill I just reboot: in these cases I get the real free space available (around 183 GB). Then after some time, even doing nothing, “disk-capacity” takes over (245 Gb).
Anyway thanks for replying.

What does Disk Utility show when the issue happens?

That is weird, usually on newer versions of macOS the free space shown in Finder is way less than it actually is.


Yet, as shown in the first post, opening a folder, at its bottom I read 245 GB.

Yep. That’s why I’d like to know if I’m the only one seeing this.

Without any runing application ?

If so, make a backup, format your SSD and re-install Sequoia.

BTW: what browser are-you using ? (if chrome, delete it and its associated djins…)

Do you have Cloud enabled ?

What is running now wih sequoia who do not existed 10 years ago (or with High Sierrra for example).
High Sierra does not have drive, cloud, Chrome, etc.

No running apps. Browser: Safari but always clearing History at quit.
No iCloud. Same extra apps running from 2012 (actually only XPress).
But, as I said, I have some doubts about xCode.

If you can’t find anything in Goggle then yes. My iMac from 2018 doesn’t make any crash log - ever. I also found no mention for this on Goggle. Xcode doesn’t change anything in Finder.

Actually one day I found something in Google and I followed the advice (booting in Safe mode and using Disk Utility): it worked all right, but after a few days the situation reappeared.

Intel Computer ?

Mac Air M3. May be the wording (Safe mode) in the posts was different.

I do not know, but reading your entry let me think Intel, until I recon I certainly saw somthing like that in help, but I was focused on other thing at that moment and then forget.

After a simple quest on Google, I get: “At boot Press the Poxer Key”.

THERE IS NO POWer keY on MacBook Pro m1…

I boot pressing the key (ID Key ?) that was the Power Key in previous laptops and it worked !

Yes, I remember now that I went through the Power key. But, as it happens with simple re-booting, the available space gets all right; only to misbehave later on.

Yes, but you didn’t mention Disk Utility in your first post. Hence why I asked. The Finder may show different information than Disk Utility.

I started seeing this today as well. Finder and System Settings believe one thing while Disk Utility and Java programs say something else.

Welcome. May I ask you how you make it right again?
Last time it happened (last week), I saw that just restarting the machine one or several times does not fix the issue. Instead I had to boot in recovery mode, run Disk Utility (but I thing this step is not needed) and restart. After restarting, the values are still different, but things get OK all at once after a certain time (twenty minutes or so).

I haven’t bothered to fix it. I only noticed because the Java program reported something different than Finder in an obvious way. I don’t normally go poking around or inspecting my free space unless I’m doing something with big files.

The same here. Only that opening a folder it comes to my eyes the inconsistency and it makes me somewhat nervous.