Screen complexly white

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Level 1

4 points

Screen complexly white

When I turn on my Mac Pro all I get is a white screen with a circle about the size of a dime on the center. The circle has a line through it. Also I just installed captain last night. Been working fine day until now

iOS 9.3.1

Posted on Apr 10, 2016 4:42 PM

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Answer 1

Apr 10, 2016 5:30 PM in response to Amkwetmore31

a circle ... on the center. The circle has a line through it.

that occurs when an important file needed to boot up Mac OS X is missing or damaged.

You may need to do a re-Install in place. (erase is generally not needed).

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Answer 2

lllaass

Level 10

210,519 points

Apr 11, 2016 12:43 AM in response to Amkwetmore31

Prohibitory symbol

When you see a circle with a slash symbol instead of the Apple logo, it means your Mac couldn't find a valid System Folder to start up from.

If you're using your Mac at a school or business, it might be trying to start from the wrong version of OS X. Contact your IT department for more help.

If this is your personal Mac, try reinstalling OS X by using OS X Recovery.

If you do not format the startup disk no data should be lost

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Answer 3

Eric Root

Level 10

685,329 points

Apr 13, 2016 10:19 AM in response to Amkwetmore31

Startup - prohibitory sign at OS X bootup

Startup Issues - Resolve

Startup Issues - Resolve (2)

Startup Issues - Resolve (3)

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