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MacBook burning hot and spinning after Ventura update

Per subject. My MacBook has been burning hot and the fan spinning all the time since the update 2 days ago. I haven’t used any CPU heavy apps, just Word and Preview could get the fan running. Any advice? Thanks!

MacBook Air

Posted on Nov 16, 2022 12:00 PM

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Question marked as Top-ranking reply

Posted on Nov 17, 2022 2:52 AM

sjung- wrote:

Per subject. My MacBook has been burning hot and the fan spinning all the time since the update 2 days ago. I haven’t used any CPU heavy apps, just Word and Preview could get the fan running. Any advice? Thanks!


Uninstall any and all third party Antivirus, Cleaners, Optimizers, VPN, speeder uppers....

all known to cause issues on the macOS


if in doubt search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates/uninstaller


Contact a third-party vendor - Apple Support

Contact a third-party vendor - Apple Support




To trouble shoot further you can:


—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. 



—SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies


Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, font cache, etc., third party system modifications and system accelerations are disabled.

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


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.


Similar questions

1 reply
Question marked as Top-ranking reply

Nov 17, 2022 2:52 AM in response to sjung-

sjung- wrote:

Per subject. My MacBook has been burning hot and the fan spinning all the time since the update 2 days ago. I haven’t used any CPU heavy apps, just Word and Preview could get the fan running. Any advice? Thanks!


Uninstall any and all third party Antivirus, Cleaners, Optimizers, VPN, speeder uppers....

all known to cause issues on the macOS


if in doubt search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates/uninstaller


Contact a third-party vendor - Apple Support

Contact a third-party vendor - Apple Support




To trouble shoot further you can:


—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. 



—SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies


Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, font cache, etc., third party system modifications and system accelerations are disabled.

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


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 burning hot and spinning after Ventura update

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