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I have a Mac Mini (late 2012) running Catalina (10.15.3). I can't remember when I first noticed it, but for a while now, I cannot sort Activity Monitor's columns. This is essentially what it looks like:

enter image description here

I've tried to find some way if I can perhaps reset its preferences, but google is not my friend.

Can someone help?

nohillside
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Darren Matheson
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  • Same question as https://apple.stackexchange.com/questions/380385/activity-monitor-columns-missing, and I recommend this answer. Basically some bug causes the Process Name column to balloon, often beyond the window boundary. One can scroll to the right and drag the column edge back. – epimorphic Nov 21 '20 at 15:42

2 Answers2

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You probably can just go to the View menu (the one between Edit and Window), select Columns and add additional columns again (or switch to a simple process view and back to hierarchical).

If this doesn't work, you can remove preferences by

  • Quitting Activity Monitor
  • rm ~/Library/Preferences/com.apple.ActivityMonitor.plist*
nohillside
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Maybe try scrolling to the right?

Lorem Ipsum
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