OSX Catalina remove system app

1, Press ‘Command + R’ when power up.

2, Open Terminal and input command to disable protection.

csrutil disable

3, Login into OSX system, locate to /System/Applications, remove (rm -rf) applications do not use. ex, iBooks.app, Stocks.app

4, Re-mount root dict when can not remove or delete.

sudo mount -uw /

5, Restart and go into recovery mode (Command + R). enable protection.

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