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I am using MacBook Air 11' Early 2015 and macOS Mojave 10.14.6.

I have recently noticed the message "1 alert" appeared next to "About This Mac" in Apple menu. 1 alert on apple menu

There seems to be nothing strange in "About This Mac" dialog.

I guess that this happpened after running some executable(s) in /System/Library/CoreServices. I tried logging as root (saw Silencing the Memory slot utility), but it persists.

Any idea to get rid of this alert? Thank you.

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I have macOS Mojave 10.14.6 on my MacBook Pro (2017, 15-inch), and I see the same message, which persists after rebooting. I do occasionally run CoreServices apps directly.

I'm no systems expert, but it makes me think that:

  • A CoreServices app added itself to a startup folder upon first launch. (e.g. the LaunchAgents, LaunchDaemons, or Startup Items folders in one of the Library folders) It may also show up in the Activity Monitor.
  • A Terminal command may reveal alerts that can't display in About This Mac screens. (I tried "mail" for my own account, but there were no messages.)

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