Prohibitory symbol
Straight out of the box my MacBook Air will not go past the login screen. I log in and the screen goes black and shows me the prohibitory symbol. How do I fix this
MacBook Air 13", macOS 10.14
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That means it doesn't find a proper boot volume. Have you tried to see if it can go into Internet Recovery Mode? You'll need a good internet connection. Ethernet is best but will require an adapter. Wi-Fi without a "splash screen" will work. You can enter a Wi-Fi password, but if it needs something like an approval screen (think a cafe) it won't work.