Hi, my Mac is showing incorrect calculations of my available space. If I add 11,34GB+88GB+1,44GB (86,39 are cinluded in the 88GB) + 15,19GB is a total of 115,97GB used. My disk: 245,11GB - 115,97GB: I should have 129,14GB free space insted of 118GB. Why im missing about 10GB of storage?
MacBook Air 13″, macOS 12.3
Your screenshot is of the Mac's "Manage Storage" app. It is not a comprehensive picture of the space used on your drive.
To get a more accurate picture of overall disk usage, do one of the following:
Even then, there may be a difference between reported free space and calculated free space (capacity minus used space). This is due to APFS and limitations in the way it reports free space. Among other things, there are some small hidden volumes on the system drive ... the "missing" 10GB could very well be the VM (virtual memory) volume.
Your screenshot is of the Mac's "Manage Storage" app. It is not a comprehensive picture of the space used on your drive.
To get a more accurate picture of overall disk usage, do one of the following:
Even then, there may be a difference between reported free space and calculated free space (capacity minus used space). This is due to APFS and limitations in the way it reports free space. Among other things, there are some small hidden volumes on the system drive ... the "missing" 10GB could very well be the VM (virtual memory) volume.
The list of items taking up disk space you showed an image of is not complete. Those are for recommendations on how to manage storage, but some hidden system-related files are not shown there, since those files cannot be disposed of. Tools like Daisy Disk will show you exactly where those files are and what they are, but unless they are snapshots, they typically cannot be deleted. So the missing 10 GB is most likely hidden system-related files or storage than in many cases is not user adjustable. However the snapshots can be deleted, Daisy Disk provides an option to do that. Daisy Disk is a program that must be purchased, but there are other tools that may be free that can also be used for this.
Compare the below picture of my M1 Mac Mini to yours. What is missing from yours is the portion of the Operating System which is not reported in your picture
That is where the Sealed and Read Only Volume of the Operating System Resides and Boots from.
That Volume, in my picture, accounts from a Reported 8.24 GB of Space and may be directly related to your 10 GB not accounted for.
EDITED = Spelling errors
Would start by. Rebuild the Spotlight index on your Mac
It could take some time ( hours or a few days ) depending on the Drive Capacity and How much Data is stored on the drive .
I need to look at the chart but it might be the system file or something. I don’t think we can remove those.
Your main anxiety is due to your purchase of a MacBook Air with a SSD that is too small. Next time, go for the 1 GB SSD as a minimum.
Thanks for your response! I figured out that that was the difference. Is there any way I can see the "System Data" calculation on Storage Management? I dont undersand why its missing.
Incorrect space calculation
