Mac OS · macOS

Fix Mac Apps That Crash or Won't Open

Source-checked About 10 minutes

Answer

Force quit the app, restart the Mac, update the app and macOS, test without plug-ins, and reinstall the app only after protecting its data.

Guide steps4 steps
  1. Restart the app cleanly
  2. Update compatibility
  3. Remove add-on variables
  4. Reinstall carefully
  5. If it still does not work

Restart the app cleanly

Force quit only the affected app, reopen it, then restart the Mac if it still fails.

Update compatibility

Install the latest app update from its trusted source and a compatible macOS update.

Remove add-on variables

Start without third-party plug-ins, extensions, or custom templates where the app supports it.

Reinstall carefully

Back up documents and settings, reinstall from the App Store or publisher, and send the crash report to its developer if needed.

Video walkthrough

If it does not work

  • If “Fix Mac Apps That Crash or Won't Open” remains unresolved, identify the first numbered step that produces a different result and preserve that screen, file, log, or message. Recheck the specific account, permission, storage, connection, source-media, or hardware prerequisite above, then follow only the matching Apple Support recovery path; do not combine unrelated resets, bypasses, unofficial installers, or third-party repair tools.
Sources and verification

Checked against official documentation on . Scope: macOS.

Follow the linked first-party guidance if labels differ after a platform or app update.

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