Every time I try to upgrade (from macOS Big Sur v11.6.2) to macOS Monterey (via Software Update in System Preferences), I get an error saying "An error occurred loading update." I've tried restarting, deleting and re-downloading the installer, and even waiting (thinking maybe that the servers were too busy). But, nothing is working. Can anyone help? Please and thank you (in advance)!
MacBook Pro (2020 and later)
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.
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.
[Running] com.expressvpn.expressvpnd.plist (ExprsVPN LLC - installed 2022-01-15)
[Running] com.anonymizer.deltavpn.L2TPConfigurator.plist (? 8942dbac - installed 2022-01-15)
[Running] org.openvpn.client.plist (OPENVPN TECHNOLOGIES, INC. - installed 2022-01-15)
The above you are using or have installed at least one VPN. Make sure you turn any VPNs off during the download and upgrade.
Webroot
Uninstall this antivirus app. They are unnecessary and not infrequently cause problems.
Download and run this app so we can find more information about your installation.
It shows what is launched and other information and is very useful in finding causes of problems. After you first launch the app make sure you check Enable full disk access in the box in lower left.
After running the app use the app's feature to paste to clipboard. The in the text box for a reply in this forum click on the addition text icon. This is because the normal reply text box limits how much you can type.
o personal identifiable information is contained if the app output. The app was written for a person who is contributor to these Apple Support Communities
Maybe CCleaner did is the cause in that maybe it removed something unintentionally. The similar CleanMyMac has a poor reputation.
You can try installing macOS 11.6.2 on top of itself and see if that help. You can get it here
Uninstalled Webroot, ran CCleaner to clean up the temp files and garbage, made sure the VPNs were not running, re-downloaded the installer, and... nothing. Same error. I guess I'll just have to run a Time Machine backup, blow the disk away, and start from scratch. :-/ Thanks for trying to help. I appreciate the advice!
Thanks for the reply, OT! I booted into Safe Mode and re-ran the update but, sadly, I am still getting the same error. Other ideas?
Problems installing macOS Monterey
