Help!! Apple startup flicks between Apple sign and blocked sign

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Level 1

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Help!! Apple startup flicks between Apple sign and blocked sign

I restarted my Mac mini and now, when I turn it on it, the apple sign on startup flicks between the apple sign and a blocked, no entry sign (a circle with a diagonal line through it). It stays like this for hours and hasn't changed. How do I fix this?!

Mac mini, OS X Mavericks (10.9)

Posted on Nov 15, 2013 11:08 AM

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Answer 1

BDAqua

Level 10

238,997 points

Nov 15, 2013 1:54 PM in response to Mimimango

If 10.7.0 or later...

Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

If that doesn't help Reinstall the OS.

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