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Macbook Pro shuts down after Safari update

My son updated safari on his Macbook by going to System Preferences. He's pretty sure that's what he did anyways. His Macbook now shuts down every 30-60 seconds it's operating. How can we fix this issue? I can't even keep it on long enough to attempt to fix the issue.

MacBook Pro (2020 and later)

Posted on Sep 27, 2021 6:17 PM

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Question marked as Top-ranking reply

Posted on Sep 28, 2021 8:13 AM

jillpbailey wrote:

My son updated safari on his Macbook by going to System Preferences. He's pretty sure that's what he did anyways. His Macbook now shuts down every 30-60 seconds it's operating. How can we fix this issue? I can't even keep it on long enough to attempt to fix the issue.



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.


1 reply
Question marked as Top-ranking reply

Sep 28, 2021 8:13 AM in response to jillpbailey

jillpbailey wrote:

My son updated safari on his Macbook by going to System Preferences. He's pretty sure that's what he did anyways. His Macbook now shuts down every 30-60 seconds it's operating. How can we fix this issue? I can't even keep it on long enough to attempt to fix the issue.



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.


Macbook Pro shuts down after Safari update

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