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How do I get my Mac mini 2009 to reboot with flashing folder with question mark

I have a blue flashing folder with a question mark can’t see to restart my Mac mini 2009

Mac mini, 10.11

Posted on Jan 27, 2019 11:49 AM

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Question marked as Apple recommended

Prohibitory symbol

A circle with a line or slash through it means that the selected startup disk contains a Mac operating system, but it's not a macOS that your Mac can use. You should reinstall macOS on that disk.


above from:

About the screens your Mac displays as it starts up - Apple Support

Posted on Jan 27, 2019 11:57 AM

1 reply

How do I get my Mac mini 2009 to reboot with flashing folder with question mark

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