After joining a network, your Mac activates.To select a Wi-Fi network, use the Wi-Fi menu in the upper-right corner of the screen. You might be asked to select a Wi-Fi network or attach a network cable.When reconnecting to a Bluetooth keyboard, you're asked to choose a language.
If the accessory doesn't connect within 30 seconds, turn the accessory off and back on.
If it needs to reconnect to a Bluetooth accessory such as a keyboard or mouse, you might be asked to turn on the accessory. Your Mac restarts and shows a black screen or progress bar.Click Erase All Content & Settings to confirm that you want to proceed.
#MAC OS SECURE ERASE PASSWORD#
If you used Boot Camp to install Microsoft Windows, use Boot Camp to remove Windows and its partition before continuing.