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what if the startup Manager does not show up after having followed the steps above?

My Mac Book Pro showed a flashing file. I tried to go to the startup manager but if I press the start button and the option (ALT) key, I still only get a white screen. Instead of the flashing file I have now the mouse arrow. What to do?

MacBook Pro (13-inch Mid 2010)

Posted on Sep 20, 2012 11:13 PM

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what if the startup Manager does not show up after having followed the steps above?

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