How to reset window positions on a Mac

Windows stuck in odd sizes and places after a monitor change or a window app. How to put them back to normal, app by app or all at once.

Guide · Updated 13 October 2026

For one app: resize and place its window, then quit the app with ⌘ Q while the window is open. Most apps remember that position next time. For all windows at once, the steps below.

All windows

  1. On macOS Sequoia and later, click each window and press Fn ⌃ F to fill the screen, or Fn ⌃ C to centre it.
  2. Use Window, Move to bring windows back from a display you no longer have. See windows off screen.
  3. Log out and back in with Reopen windows when logging back in unticked, so apps start fresh.

After using a window manager

A window manager that quits cleanly should put windows back. ClutterFreeMac remembers where every window was before it arranged it; quitting or pausing (⌃ ⌥ P) gives every window back its old place, even after a forced quit.

One app keeps opening wrong

Hold ⇧ while opening it to skip restoring its old windows, then size the window again. See an app opening at the wrong size.

Questions

How do I reset all window sizes on a Mac?

Fill or centre each window (Fn ⌃ F or Fn ⌃ C on Sequoia and later), then log out without reopening windows so apps start fresh.

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