System Files 465 GB - What Is Going On?

I just checked the Storage in System Information on my MacBook Pro and I almost fainted. It reports 465 GB of system files!!! And my 1 TB SSD HDD is now almost full. How could this possibly be? Please see the attached screenshots.


HELP! What should I do about this situation? Thank you very much.User uploaded fileUser uploaded file

MacBook Pro with Retina display, macOS High Sierra (10.13), i7 2.6GHz, 16GB, 1TB SSD

Posted on Sep 27, 2018 7:14 PM

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Posted on Sep 27, 2018 7:21 PM

Those are estimates, based on Spotlight index data. If you have done a re-Install, the new added files are correctly reflected, but the old ones are not removed. To get a more accurate estimate, rebuild the index:


How to rebuild the Spotlight index on your Mac - Apple Support




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21 replies

Sep 27, 2018 8:08 PM in response to Michael9009

The output of almost everything shown is "Operation not permitted". I am not sure what you are trying to accomplish, but you certainly have not accomplished it with these commands.


Rebuilding the spotlight index is easy, and will get you more accurate information. There is no penalty for doing so. The procedure is spelled out in the Apple article I cited. I suggest you follow that recipe, and soon your size estimates will be much more accurate.


It is good you have Trusted Backups, so once you know you have space, you can proceed without worrying you might get stuck.

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System Files 465 GB - What Is Going On?

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