Please see this image:

red box in finder icon

I don't know what's going on with that icon, but it has been persistent for the past week. It became like that when I forced the shutdown on my Mac because it hanged up. I've just upgraded to El Capitan when it happened.

I've tried the following:

  • Reboot
  • Relaunch Finder
  • Quit Finder and Dock on Activity Terminal
  • killall Dock

Nothing worked so far.


As per user24601's suggestion, I've tried the following:

  • Turned on magnification. It persists on zoom. Please see image:


  • Tried to change position. It still persists:

vertical dock

  • Interesting! Did you try killall Dock in terminal?
    – bjbk
    Oct 7, 2015 at 0:13
  • Several times. I also found out that killing the Dock and relaunching Finder does not relaunch Dock. I just did it now, and while the behavior changed (Dock relaunched), the icon remains the same.
    – IBG
    Oct 7, 2015 at 0:44
  • 1
    You might want to update your question with the steps you took already to try to fix it but without success. Cheers!
    – bjbk
    Oct 7, 2015 at 1:14
  • 1
    If you turn on Dock Magnification, does the red box grow with the icon?
    – user24601
    Oct 8, 2015 at 2:37
  • @user24601 yes, please see updated question.
    – IBG
    Oct 8, 2015 at 2:55

5 Answers 5


I ended up reporting it as deeeeeeekun suggested. Some of the suggested workaround in the comments were also suggested to me. This is the solution they gave that worked:


2) attach com.apple.dock.iconcache to radar

3) rm com.apple.dock.iconcache; killall Dock

I'll update the answer when they give me the reason why the redbox happened.


It could well be a bug. You can try sending feedback to Apple.


Try doing a Safe Mode startup (hold down the Shift key right after the start-up chime.)

Getting to the user Desktop may take longer than usual as there are several things OS X is doing during a Safe Mode such as checking the integrity of the boot disk and deleting cache files. Once Safe Mode finishes, restart.


I had the same problem with a half red/pink box on my finder icon (like a hat).

Just a 'killall Dock' command in the Terminal fixed it.


Looks a lot like an accessibility feature. Check under that section in System Preferences.

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