Problems with SMC or System Management Controller.Check out the Mac firmware password and FileVault. Issues in the security settings of the system prevent booting in safe mode.Ensure the keyboard is working perfectly fine, so you can use the Shift key properly.Releasing the Shift shortcut key immediately instead of pressing it down for some seconds.The Mac might not be powered off entirely before restarting it into safe mode.Why Is My Mac Not Starting in Safe ModeĪre you wondering why your Mac won't start in safe mode? Well, various reasons could lead to this error. If you can't do it, some issues must be resolved immediately. Starting the safe mode is relatively easy. However, many users have reported problems while starting the safe mode. Another reason is the system crashing and restarting itself. For instance, it can be due to the system freezing up or the inability of the OS to boot normally. Various reasons lead users to opt for the safe mode. The main reason safe mode on Mac doesn't allow non-native or third-party apps to run is to optimize its performance. It also eliminates system caches, removing primary reasons for issues.

Apart from that, the safe mode also continues a basic assessment of the system disk. Other apps and extensions that are not precisely necessary will not run.

Safe mode is a highly controlled environment where only the essential apps and files are run on Mac. Press Command, Option, Control, and Power buttons simultaneously. Press the Option (Alt) key, Control key, and Shift keys. Press and hold the Command and R keys to restart the system.

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