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Failed monterey update 12.5.1 downloads but fails to install

when downloading Monterey update 12.5.1, I get an error saying download failed at the very end of the download just when it's about to install. I have 1tg of memory capacity left so I doubt that that is the issue. Has anyone solved this problem please advise thanks




iMac 27″ 5K, macOS 12.2

Posted on Jul 25, 2022 1:55 PM

Reply
Question marked as Top-ranking reply

Posted on Jul 25, 2022 2:51 PM

I've had better luck from the Safe Mode because I evidently have some 3rd party software that interferes with the installation so try the following:

#1 - boot into Safe Mode according to Start up your Mac in safe mode - Apple Support.

NOTE: Safe Mode boot can take up to 3-5 minutes as it's doing the following; 
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts 
• Deletes font caches, kernel cache, and other system cache files

#2 - go to the System/Software Update preference pane and begin the download.

#3 - run the installer from the Safe Mode.



3 replies
Question marked as Top-ranking reply

Jul 25, 2022 2:51 PM in response to marramco

I've had better luck from the Safe Mode because I evidently have some 3rd party software that interferes with the installation so try the following:

#1 - boot into Safe Mode according to Start up your Mac in safe mode - Apple Support.

NOTE: Safe Mode boot can take up to 3-5 minutes as it's doing the following; 
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts 
• Deletes font caches, kernel cache, and other system cache files

#2 - go to the System/Software Update preference pane and begin the download.

#3 - run the installer from the Safe Mode.



Jul 25, 2022 2:30 PM in response to marramco

marramco wrote:

when downloading Monterey update 12.5.1, I get an error saying download failed at the very end of the download just when it's about to install. I have 1tg of memory capacity left so I doubt that that is the issue. Has anyone solved this problem please advise thanks



A - Is this is a Typo error " when downloading Monterey update 12.5.1 "?


A - If not, this is no place to for Beta Testers

Failed monterey update 12.5.1 downloads but fails to install

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