TL;DR
Move the pointer to the Dock’s screen edge; full-screen apps may hide it temporarily.
- To keep it visible, turn off Automatically hide and show the Dock in Desktop & Dock settings.
- Check the configured screen edge if it does not appear where expected.
Sources: Check the Dock settings
Before changing anything else, check what disappeared. If the Dock is visible but one app icon is missing, skip to putting an app back. If you use another display, check that screen too.
A hidden Dock and a missing shortcut need different steps.
How to Bring Back a Missing Dock on Mac
1. Reveal the Dock in a Full-Screen App
When an app fills the screen in full-screen mode, move the pointer to the edge where your Dock normally sits. The Dock appears while you use it, then hides again when you move away.
That behavior is part of full-screen mode.
- To leave full-screen mode, move the pointer to the top of the screen so the window controls appear.
- Hold the pointer over the green window button, then choose Exit Full Screen. Check whether the Dock is visible back on the desktop.


Want a large window with the Dock still visible? Use a maximized window instead of full-screen mode.
The window behavior differs, so turning off Dock hiding alone does not keep it permanently visible inside a full-screen app.
2. Try the Dock Shortcut Once
Press Option-Command-D to show or hide the Dock. This shortcut is a toggle: it changes the current hiding state. Pressing it once does not always turn hiding off.
If the result is unclear, check the switch in System Settings below.

3. Check Hiding, Size, and Screen Position
Open Apple menu > System Settings > Desktop & Dock. These Dock controls let you check the setting directly, rather than guessing from the shortcut.


- Turn Automatically hide and show the Dock off if you want it visible on the desktop.
- Check Dock position on screen. The Dock can be at the bottom, left, or right edge. Move the pointer to the selected edge to look for it.
- If the Dock is present but hard to see, increase the Size slider.

If you can reveal the Dock, Control-click its separator line to open the Dock shortcut menu. When the menu offers Turn Hiding Off, choosing it disables hiding.
If that label is absent, use the System Settings switch instead.

4. Check the Other Display
With multiple displays connected, look for the Dock on the other screen before treating it as missing.
In System Settings > Desktop & Dock, scroll to Mission Control and check Displays have separate Spaces.
When that option is on, the Dock is available on all displays. When it is off, the Dock appears only on the main display.
Check this display setting if the Dock is visible on your MacBook screen but missing from your external monitor. First check the current setting and the main display.
You do not need to change your workspace arrangement just to locate the Dock.
5. Check a Dock Customization You Already Use
If you use an app specifically to customize or hide the Dock, check that app’s own hiding controls. Temporarily turn off that feature, or quit the customization app normally, then see whether the Dock returns.
Keep this check limited to software you recognize and already use.
Treat any change as a clue to investigate with the app’s support team. A busy app in Activity Monitor does not establish that it caused the Dock to disappear.
There is no reason to uninstall unrelated apps to test this possibility.
6. Save Your Work and Restart Normally
If the Dock still fails to appear but the Mac responds, save your open documents before restarting. Choose Apple menu > Restart, then confirm.
Follow the normal restart steps rather than holding down the power button for a Dock-only problem.


Once you are back at the desktop, check the Dock with no app in full-screen mode. Move the pointer to its selected edge, then confirm the hiding switch is still set as you want it.
If the whole Mac has stopped responding, use the separate frozen Mac guide to choose the next step based on what still works.
If the problem keeps returning after these checks, contact Apple Support. Note your macOS version, connected displays, whether it happens only in full-screen apps, and any Dock customization you use.
Those details help narrow down the issue without resetting your Dock layout or deleting files.
How to Put a Missing App Back in the Dock
If the rest of the Dock is visible, deal with the missing icon separately. Removing an app from the Dock removes its shortcut, while the app itself stays on your Mac.
You can restore the Dock icon without resetting the whole Dock.
- Open the app from the Applications folder in Finder.
- Control-click its icon in the Dock while the app is open.
- Choose Options > Keep in Dock.
You can also drag the app from Applications into the app section of the Dock.
If you cannot find the app in Applications, check whether it is still installed before trying to add its shortcut.
Frequently Asked Questions
Does removing an app from the Dock uninstall it?
No. Removing a Dock icon removes an alias, which is a shortcut to the app. The app stays on your Mac. Removing Dock items does not uninstall them.
Why does an app icon disappear after I close the app?
An app can appear in the Dock while it is open without being kept there permanently. Open it again, Control-click its Dock icon, and choose Options > Keep in Dock.
The Keep in Dock option keeps its shortcut available after you quit.
Can I make Dock icons easier to see?
Yes. Open System Settings > Desktop & Dock and increase Size. You can also enable Magnification to enlarge icons as the pointer moves over them. Both are Dock appearance controls.
What does the dot under a Dock icon mean?
The dot indicates that the app is open when Show indicators for open applications is enabled. You can check that option in Desktop & Dock settings.
A missing dot alone does not tell you that the Dock is broken.
Why do some recent apps disappear from the Dock?
The Dock can show suggested and recent apps separately from the apps you keep there. Check Show suggested and recent apps in Dock in the Dock settings.
To retain a particular app shortcut, use Options > Keep in Dock on its open Dock icon.
Can I keep the menu bar visible in full-screen mode too?
Yes. The menu bar has its own hiding setting. Set Automatically hide and show the menu bar to Never in Menu Bar settings, as described in the full-screen guide.
Changing that setting does not keep the Dock permanently visible in full-screen mode.
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