Thread: Macbook OS will not start
02-17-2012, 04:26 PM #1
Macbook OS will not start
- Member Since
- Feb 17, 2012
i have a three year old macbook..
when i try to start the machine a grey circle with a line thru it comes on the screen...
the whirling disk keeps whirling but the OS does not start..
anyone know which buttons to press on startup to fix this problem?
02-17-2012, 05:54 PM #2
- Member Since
- Nov 28, 2007
- Nambucca Heads Australia
- Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
G'day and welcome to the forums.
Try zapping the PRAM, boot and hold down Command, Option P and R keys all at the same time immediately after the chime, and keep held down until you hear the third chime.
No joy boot from your system disc and run repair Disk from there as you may have a failing hard drive.Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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