Question: [![enter image description here](https://i.stack.imgur.com/liZpX.png)](https://i.stack.imgur.com/liZpX.png)

![](https://i.stack.imgur.com/NHn5D.png)

I installed high Sierra a few months ago and nowadays there seems to be a problem with System Information.app, it always shows the disk usage wrong like for example System 40GB but it shows photos to be 0KB even though I have 19GB worth photos and DaisyDisk reports correct disk usage. 

I have tried booting into safe mode and rebooting, this persists after restarts 

Screenshot:
[![enter image description here](https://i.stack.imgur.com/BwsKp.png)](https://i.stack.imgur.com/BwsKp.png)
[![enter image description here](https://i.stack.imgur.com/MbKKj.png)](https://i.stack.imgur.com/MbKKj.png)

I have run this scan as root user not admin.

so how do fix this missing photo sizing in system information.app?

Answer: 
I recently ran into this - on my 500GB SSD, my free space was only 5% where I expected more like 75%. I found an answer in a [blog](https://www.jethrocarr.com/2017/11/06/macos-high-sierra-unable-to-free-disk-space/) that worked for me:

> 
> Apple state that they automatically remove local snapshots when disk space is low, but their definition of low is apparently only 5GB of free space remaining – not really much free working space in 2017 when you might want scratch space of 22GB for 1 hour of 4k 30FPS footage.
> 
> 
> On older MacOS releases, it was possible to disable the local snapshot feature entirely, this doesn’t seem to be the case with High Sierra – but it does appear to be possible to force an immediate purge of local snapshots with the following command:
> 
> 
> 

```
sudo tmutil thinLocalSnapshots / 10000000000 4

```

From the `tmutil` manpage:

> 
> 
> ```
> thinlocalsnapshots mount_point [purge_amount] [urgency]
> 
> ```
> 
> Thin local Time Machine snapshots for the specified volume.
> 
> 
> When **purge\_amount** and **urgency** are specified, tmutil will attempt (with **urgency** level 1-4) to reclaim **purge\_amount** in bytes by thinning snapshots.
> 
> 
> If **urgency** is not specified, the default urgency will be used.
> 
> 
>
I solved this issue just relaunch finder.
Click on apple logo->Force Quit->Finder and click Relaunch. 
So I opened my finder and it shows the correct size.