The MacBook is warm and the fans are running. Update: Four hours later, I woke up my 'sleeping' MacBook Pro to find free space dropped to less than 20MB. When free space drops too low many apps and services won't run, such as: Setapp (or apps installed under it), Mail, iCloud documents, and macOS continually asks to close applications due to low memory. My available disk space is currently fluctuating up and down, though not above 2GB (I deleted the 6.5GB Xcode app 30 minutes ago). The lack of free disk space chokes applications that need it.

It has nearly halted the ability to use my MacBook Pro. MacRumors Forums - Is anyone else experiencing something like this? I haven't been able to find a similar issue online.I should hear back Monday about the response from macOS engineering. I provided Apple-collected diagnostic files and screenshots of system status and file sizes.

Case was escalated to a senior advisor who has filed it with engineering.

AppleCare Support - I explained and demonstrated the issue via screen sharing.

Neither Finder nor Daisy Disk can reveal the contents of this hidden space.ģ) Malwarebytes - Zero issues or vulnerabilities Within this 'Hidden Space' lies my problem.

Daisy Disk - Found 221GB of 'hidden space'.

Disk Utility First Aid - Data and System partitions OK.

Note that my hidden files are shown and no hidden files are in my Users folder. The first oddity is that my Users folder shows a size of 475GB. Next, I searched through my SSD to see where the space was being used. Within the next hour, the MacBook's free space continued to drop from 50GB to 1GB-without any interaction by me. I proceeded to scan through and remove unnecessary files, clearing about 50 GB. With a 500GB SSD, free space had dropped to 90 MB without me adding any files of significant size. Two days ago, my MacBook Pro (15-inch, 2017 macOS 10.15.1 Catalina) told me it was out of storage space.

Macbook pro clean up disk space