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System data taking 155gb on Sonoma macOS

Just updated to Sonoma on my iMac (M1 chip) and it is taking 159gb of System data!


How do I free up that much space?


iMac 24″, macOS 14.0

Posted on Sep 26, 2023 9:13 PM

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Posted on Apr 25, 2024 6:10 AM

You can use disk space visualizer programs, such as Disk Drill (tiles - a free option in this program), and DaisyDisk (shareware), to search for large files and folders on your disk. Many programs leave behind garbage and hidden folders.


For me, the strangest discovery was finding a large .Trash hidden folder in the system subfolders under /var/ (left over from a deleted user) and a 22-gigabyte cache file from the Telegram messenger.

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System data taking 155gb on Sonoma macOS

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