I sometimes like to have Activity Monitor running in the dock (to see CPU usage chart in the icon at a glance).

I didn't use it for some time though, but with a new mac I bought (El Capitan) I thought I'd activate it again.

Now I can have it start automatically but I always have to minimize the Activity Monitor window after login.

I think in the past6 I had set it with that option (to autostart at login via right-click on the dock icon) so that it started minimized but I can't seem to remember how.

Am I remembering wrong or missing an option?

1 Answer 1


Does this not work?

First right-click on Activity Monitor and go Options > Open at Login.

Next, open System Preferences > Users & Groups > Login Items and tick Hide.

  • Yay. That sounds like what I was missing (I thought I knew there was an option somewhere, but was looking inside Activity Monitor). I'll try tomorrow and am sure it will work (will give you correct answer then). Oct 5, 2016 at 22:54
  • Correct. This must get a reward for the best hidden option of all times. Oct 6, 2016 at 8:13
  • (macOS 10.13) For this the main answer to work you have to make sure you quit any manually started Activity Monitors before you logout otherwise the session saving will cause the window to appear when you next log in. An alternative is to simply hide the Activity Monitor window (e.g. via ⌘H) before you log out/shutdown and let the session save that state.
    – Anon
    Jan 24, 2019 at 12:07
  • Thanks for this! It should just be an extra Option in the Activity Monitor's Dock Options menu. Just request Apple to do this by using Activity Monitor's "Send Feedback" option in its Help menu. Must be so easy to add.
    – RickJansen
    Jan 19, 2022 at 18:13
  • It seems in macOS Ventura the "Hide" option in the settings is gone. How do I do this in Ventura?
    – bitbonk
    Apr 19, 2023 at 20:23

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