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Modifying Dock Not Working

My dock will not allow modifications. I have tried the Terminal command to no avail. In System Preferences, the Dock parameters are grayed out. MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)

Posted on Jan 25, 2022 10:50 AM

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Question marked as Best reply

Posted on Jan 26, 2022 6:52 AM

onlyjohn wrote:

My dock will not allow modifications. I have tried the Terminal command to no avail. In System Preferences, the Dock parameters are grayed out. MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)



Modify how ?


Old issue, new issue, what changed?


Dock User Guide:

https://support.apple.com/guide/mac-help/dock-mh35859/mac



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262



Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac

This will tell you if it a universal issue or isolated to your user/admin account. 



Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS



Similar questions

1 reply
Question marked as Best reply

Jan 26, 2022 6:52 AM in response to onlyjohn

onlyjohn wrote:

My dock will not allow modifications. I have tried the Terminal command to no avail. In System Preferences, the Dock parameters are grayed out. MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)



Modify how ?


Old issue, new issue, what changed?


Dock User Guide:

https://support.apple.com/guide/mac-help/dock-mh35859/mac



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262



Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac

This will tell you if it a universal issue or isolated to your user/admin account. 



Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS



Modifying Dock Not Working

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