You can also look at the built in Disk Utility. The directory has restrictive permissions, so I assume that was the culprit.ĭeleting that directory isn't harmful to the system as far as I know, and it regenerates when the OS needs it again.

Daisy Disk, however, did find a glob of ~75 GB that it couldn't scan because of permissions, even when scanning as admin. Now my System section is 50 GB (used to be 120 GB).ĭisk Inventory X gave me different sizes than the System Information window and it didn't find any problematically large files. The system couldn't read the size of the directory so I figured it was a problem folder, so I deleted it, emptied the garbage, and restarted. I read an answer somewhere to an issue related to this that I could delete the folder in /System/Library/Caches/. I restarted a few times and nothing seemed to happen. One night the size of the 'System' section of my storage increased 40 GB in an hour (though, I am running the High Sierra Beta). I believe that when I got my MBP, the size was around 16 GB.