macOS Guide

How to stop Mac Spaces from rearranging themselves

You set up your desktops the way you like them. Email on Desktop 2, code on Desktop 3, browser on Desktop 4. Then you look up at Mission Control and everything has shuffled around. Again.

Why your Spaces keep moving

This is not a bug. Apple actually ships macOS with a feature that deliberately rearranges your desktops based on which ones you used most recently. The idea, presumably, is that your most-used Space should always be closest to the left. In practice it means you build muscle memory for "Desktop 3 is my code editor" and then macOS decides Desktop 3 is now your email.

The setting responsible is called "Automatically rearrange Spaces based on most recent use." It's been on by default for over a decade. Most people don't even know it exists, which makes the rearranging feel random and broken.

If you've ever swiped to the right expecting Slack and landed on Photos instead, this is why.

The main fix

Open System Settings (on older macOS versions it's called System Preferences). Go to Desktop & Dock. Scroll down to the Mission Control section. Turn off "Automatically rearrange Spaces based on most recent use."

That's it. Your Spaces will now stay in the order you put them in.

On macOS Ventura and later, the path is System Settings > Desktop & Dock > Mission Control. On Monterey and earlier, look in System Preferences > Mission Control. The toggle is in the same place either way.

Why your Spaces still move after turning that off

Here's the frustrating part. You disable the setting, feel good about it, and then a week later your desktops are scrambled again. You didn't imagine it. There are several other things that cause Spaces to shift around, and the automatic rearrange toggle doesn't protect against any of them.

Fullscreen apps get forced to the end

When you make an app fullscreen on macOS, it creates a new Space and moves it to the far right of your Space bar in Mission Control. Exit fullscreen, and that Space disappears. This pushes everything around. If you had five desktops and you fullscreen Safari on Desktop 3, macOS pulls it out of position and tacks it on at the end. The remaining desktops collapse to fill the gap. When you exit fullscreen, Safari goes back but now it might not be in the same slot.

Waking from sleep shuffles things

Some users report that closing and reopening their MacBook lid causes Spaces to reorder. This seems to happen more often when external monitors are involved. macOS appears to rebuild the Space list when it re-detects displays, and it doesn't always put things back where they were. There's no dedicated setting for this. It's been a long-standing complaint in Apple support forums.

Connecting or disconnecting monitors

This is the big one for anyone who docks a laptop. Plug in an external display and macOS redistributes your Spaces across the screens. Unplug it and they collapse back onto your laptop screen, often in a different order. If you use a desktop setup at work and then take your MacBook to a coffee shop, you'll likely see your Spaces in a completely different arrangement each time you switch.

Additional settings that help

While you're in the Mission Control settings, there's a second toggle worth changing.

Turn off "When switching to an application, switch to a Space with open windows for the application." When this is on, clicking a Dock icon can yank you to a completely different Space because that app has a window open over there. It's disorienting. You click Finder in the Dock expecting it to open on your current desktop and suddenly you're three Spaces away.

With it off, clicking a Dock icon opens the app on your current Space or brings forward the window on your current Space. Much more predictable.

Avoid fullscreen mode when you can

If rearranging Spaces drives you up the wall, consider not using macOS fullscreen mode at all. Instead, just resize the window to fill the screen. On macOS Sequoia you can drag a window to the top of the screen to maximize it without going fullscreen. On older versions, hold Option while clicking the green traffic-light button. You get the same visual result without macOS creating and destroying temporary Spaces behind the scenes.

This single change eliminates a huge source of Space shuffling.

How SpaceJump makes this less painful

Even with every setting tweaked, macOS still identifies Spaces by number. Desktop 1, Desktop 2, Desktop 3. If something does shuffle, you have no reliable way to tell which desktop is which from Mission Control's tiny thumbnails.

SpaceJump gives each Space a persistent name that shows in your menu bar. You label Desktop 1 as "Email," Desktop 2 as "Code," Desktop 3 as "Design." If macOS rearranges the underlying order, the names follow. Your "Code" Space is still "Code" regardless of whether macOS has decided it's now Desktop 4.

The Quick Switcher takes this further. Hit one keyboard shortcut and you get a search-driven overlay listing all your Spaces by name. Type "code" and jump straight there. You stop thinking in terms of "which numbered desktop was it" and start thinking in terms of what you actually put there. Position doesn't matter when you can search by name.

It's a small shift, but it removes the entire class of frustration around Space ordering. The underlying numbering can do whatever it wants. You never notice.

Frequently asked questions