macOS 11.6.1 UPDATE FAILED 4 TIMES! HELP!!!

This is the third time I have tried to install macOS Big Sur and come with a new problem; please help me. The package InstallAssistant.pkg fails to meet Gatekeeper policy. Why is this happening repeatedly?


The current OS is Catalina and has 200gb of free storage.


Thank you!

iMac 27″ 5K, macOS 11.6

Posted on Nov 28, 2021 12:05 PM

Reply
Question marked as Top-ranking reply

Posted on Nov 28, 2021 12:08 PM

Check that your system time is correct.


Boot into Safe Mode as that disables various problematic add-ons, and try the upgrade again.


If that fails, delete and re-download the installer while booted in Safe Mode, and try again.


How to use safe mode on your Mac - Apple Support


2 replies

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.

macOS 11.6.1 UPDATE FAILED 4 TIMES! HELP!!!

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