HT204323: If a flashing question mark appears when you start your Mac

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Q: Flashing question mark upon start up, don't have installation disk. What do I do?

When I try to start my Macbook Pro, the screen goes grey and there is a flashing folder with a question mark. I've run diagnostic tests and tried repairing the disk, but everything says that there is nothing wrong with my laptop. I have a lot of important folders saved, so I'm nervous about rebooting it. What can I do?

Macbook, Mac OS X (10.1.x)

Posted on Jun 25, 2015 11:30 PM

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Q: Flashing question mark upon start up, don't have installation disk. What do I do?

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