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Question: MacBook Air does not start after recent update

Yesterday it was automatically updated but after restart a ? Sign starts blinking in the middle of screen

I turned it off and on several times but without any use.

MacBook Air (13-inch Mid 2011), iOS 11.1

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Nov 17, 2017 8:27 AM in response to Akmonfar2238 In response to Akmonfar2238

Hi,

If you see a folder with a question mark appear instead of the Apple logo, it means your Mac couldn't find a local or network-based startup disk. This can happen if the disk selected in the Startup Disk pane of System Preferences isn't available. Wait a few seconds to see if your Mac is able to locate the startup disk you specified.

If you still see a question mark after waiting a few seconds, use Startup Manager to start up your Mac, then select your startup disk from System Preferences.

If a question mark appears after you install a software update, select your startup disk again using macOS Recovery.

Nov 17, 2017 8:27 AM

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Question: MacBook Air does not start after recent update