Installing updates while in safe mode is a very good idea. although apple does not make a specific recommendation to do so, they do recommend quitting all applications including any third-party software in order to minimize problems from incompatible software.. In safe mode, your mac prevents some software, such as startup items, from loading. what does get loaded are the bare minimum level of drivers and essential software. this is by design, to help you troubleshoot your mac and isolate the cause of a software conflict.. How to start your mac in safe mode. this wikihow teaches you how to restart your mac into safe mode. safe mode is a diagnostic tool that disables non-essential programs and services on your mac, thus allowing you to remove troublesome programs or change persistent settings..
Safe mode is a stripped down version of the mac operating system that can be useful if you are trying to troubleshoot issues with your mac: perhaps it is running slowly, maybe an app is causing. A fix for os x hanging at startup, even in safe mode when you start up your mac, os x will display a progress indicator on a background with an apple symbol, right before loading the os x interface. in versions of os x prior to yosemite this was a spinning wheel, and in yosemite it is an ios-like progress bar.. Safe mode is a troubleshooting step best suited if you’ve noticed that right after a new software installation or update, your mac will no longer boot. safe mode boots os x with the bare minimum - no additional software or extensions..
