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1Sarge Author

Level 1

4 points

iMac powers up but when progress bar is half way screen turns off

Wont boot up logo comes on and progress bar opens 50% then powers down

iMac 21.5", OS X 10.11

Posted on Dec 14, 2019 2:18 PM

Best reply

John Galt

Level 10

141,502 points

Posted on Dec 14, 2019 2:56 PM

Please read If your Mac doesn't turn on or start up - Apple Support.

Excerpt:

If your Mac turns on but doesn't finish starting up, you might be able take steps based on the screen you see on your display.

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iMac powers up but when progress bar is half way screen turns off

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