Every time I restart my mac book pro, all my settings of default applications change to factory default applications. For eg, I set adobe acrobat reader DC as my default PDF viewer, sublime text as default text editor and google chrome as default browser but on next restart/power on, the default applications change back to preview, textedit and safari.

How can I make my changes permanent and prevent this change from happening?

Right now, for setting default apps, I right click on file -> Get Info -> Open With -> Change All But this has to be done on every power on/restart.

1 Answer 1


Never face this, but I would say to delete the /users//library/preferences/com.apple.launchservices.plist file where is your username

Then, define a preferred app for your PDFs, shutdown, restart and check

  • I do not have a com.apple.launchservices.plist file Oct 22, 2016 at 19:11
  • Do not go in the Library of your "Macintosh HD", but in the Library of our account (the little house on the left pane when you double click on your hard drive icon) Oct 22, 2016 at 19:19
  • See imgur.com/7fZAT8F ; sorry my OS is French. Oct 22, 2016 at 19:23
  • I did go to the one in my account. Still couldnt find it there Philippe Oct 22, 2016 at 19:28
  • Strange; imgur.com/XC4GWFh; 1st time I hear that OS X get rid off this file ?? Oct 22, 2016 at 19:34

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