I heard my MacBook Air's fan running loudly, so I opened Activity Monitor. I see that a process named "ApplicationsStorageExtension" has a high number for % CPU. How do I kill that process?


1 Answer 1


Did you leave About This Mac open with Storage selected?

I think ApplicationsStorageExtension calculates how much storage your Mac is using.

To stop it:

  1. Choose About This Mac from the Apple menu  (located in the top-left corner of your screen).
  2. Close the window that appears.
  • This solution worked for me instantly.
    – mrmut
    Commented Feb 24, 2023 at 6:37
  • Do you know what is it computing 24/7?
    – Bharel
    Commented May 10, 2023 at 20:19

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