How to reduce 120GB system data on Mac beyond clearing caches?

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Level 1

4 points

So, i have this system data built up from God knows what because catches is not one.

Ive tried to clear some space in my Mac but is futile. Very frustrating at this point because this SD is the biggest culprit of all, more than 120gb.

Pls help me with a diferent option than what i already found on youtube. Pls pls pls!!

[Re-Titled by Moderator]

Original Title: syatem data too big

Posted on Sep 14, 2025 12:10 AM

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Answer 1

Level 8

45,545 points

You might want to reinstall macOS In order to regain control over your system data growing too large

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Answer 2

Note that System Data is also a catchall for items generated by apps that don't neatly fit into other categories.

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