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
Sort By: 
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.



Reply

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

Reply

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Failed monterey update 12.5.1 downloads but fails to install

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.