How to delete MacOS system files.

 
Written By Sanjir Habib On Dec-22nd, 2017

Why?

Sometimes you need it. Recently for installing tensorflow with python. Which requires python’s numpy uninstalled from MacOS’s default installation.

Step 1

Reboot your system and press Command-R while booting. Just as you hear the startup sound.

Step 2

In the recovery screen, find and open command console from menu.

Step 3

Type

# csrutil disable
# reboot

You are done.

Remember to revert back once you are done.