mac book pro shuts down during start up
My mac book pro will begin the start process, but shut back down about a third of the way through. I tried running diagnostic, and get an error symbol. It will start as a guest.
MacBook Pro
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My mac book pro will begin the start process, but shut back down about a third of the way through. I tried running diagnostic, and get an error symbol. It will start as a guest.
MacBook Pro
Just what error symbol did you get? At what stage did y get it?
Just where in the startup process does shut down?
Is it when the progress bar is finished filling up?
What OSX version?
What model MacBook Pro?
This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.
I got a exclamation point in the globe after about two minutes.
It shuts down with about a third of the progress bar loaded.
I think Mountain Lion
Model A127B
Try booting to Recovery
OS X: About OS X Recovery - Apple Support
and repairing the HD
If it can't be repaired then your HD has failed and has to be replaced.
After replacement you can boot from your install DVD and reinstall OSX.
Also, if you updated the EFI on your Mac
Computers that can be upgraded to use OS X Internet Recovery - Apple Support
then you can instead boot to Internet Recovery to reinstall the OS
mac book pro shuts down during start up