Precautions for installing mac OS

Precautions for installation of mac system 1. Options for startup items (1), c for startup, startup from cd or dvd (2), and option for startup, select the boot item www.2cto.com, and then press "Option (Alt)" to bring up and start the CD from the CD. 1. How to bring up the CD) key + pop-up key ". A cd is displayed before the system starts. Press and hold the left mouse button (press the touchpad) when starting the boot, and then release the left mouse button after the disc pops up. Press and hold the back key in the upper-right corner when starting the instance. Press F12 at startup, and the disc is automatically displayed at startup. Click my computer-file-pop up. Right-click the optical drive. Www.2cto.com 2. How to enable the boot from the disc (because the MacBook does not have a BIOS, you cannot set the boot from the disc .) Press C at startup. (Press and hold the C key before entering the system. This function starts from the CD.) press Option (Alt) to start the system or start the system.