Home > Mac administration, macOS, Management Profiles > 32-bit application alert message in macOS 10.13.4

32-bit application alert message in macOS 10.13.4

Starting on April 12, 2018, Macs running macOS 10.13.4 will display a one-time alert when 32-bit applications are opened. This alert will appear once per user account on the Mac, when a relevant 32-bit application is opened.

Screen Shot 2018 04 12 at 12 02 17 AM

When the Learn More… button in the alert window is clicked, the following Apple KBase article opens in your default web browser:

32-bit app compatibility with macOS High Sierra 10.13.4

Screen Shot 2018 04 12 at 12 04 34 AM


For those who need to stop this alert from being displayed in their environments, I’ve built a management profile to suppress the warning. It is available on GitHub via the link below:


  1. Harold
    April 18, 2018 at 12:57 am

    On which folder does it gets installed if i click it?

  2. Ian
    May 10, 2018 at 6:25 pm

    Thanks for making this. What is the Preference domain do you recommend if I am making a custom config profile in JAMF? I see both .GlobalPreferences and com.apple.ManagedClient.preferences listed in the plist.

  3. Ian
    August 29, 2018 at 10:14 pm


  4. Allan
    April 18, 2019 at 1:15 pm

    This seems to not work anymore on 10.14.4 (and assuming onwards). Was working fine on everything up to 10.14.3.

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