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If your Mac won't turn on

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Question: White screen

iMac has white screen and won’t power up

iMac

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Check the startup disk for errors ..


Startup your Mac while holding down the Command + R keys.


From there you should be able to access the built in utilities to verify and repair the disk if necessary using macOS Recovery.

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Apr 22, 2018 5:23 PM in response to Mh4278z In response to Mh4278z

Check the startup disk for errors ..


Startup your Mac while holding down the Command + R keys.


From there you should be able to access the built in utilities to verify and repair the disk if necessary using macOS Recovery.

Apr 22, 2018 5:23 PM

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Question: White screen