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My MacBook is stuck at the grey screen. I'm running OS6. My mail crashed twice earlier today, so I did a restart. It stuck at the grey screen. How do I get past this, and what's causing it to happen?
MacBook Pro (15-inch Early 2011), iOS 6
Gray screen can be any number of issues,
I've created this User Tip of Steps that you can take in order to narrow down your problem
This is the 4th time this has happened. The solve is always to reinstall OS X. I don't remember how I did it though. I don't have a disk, I purchased Mountain Lion though the App Store. I once had the Genius Bar look at it, and the did the same reinstall.
I suspect your problem is a bad sector(s) on the hard drive.
In rare circumstances the normal mapping off process doesn't work, like it can't read the destroyed data, or your one of those people who are moving their laptop while it's in operation, which causes the heads to strike the platters and ruining data your machine requires to operate.
What your going to have to do is remove all your personal data off the drive.
Then command r boot the machine into Recovery HD, use Disk Utility to Erase (middle selection, important) the Macintosh HD partition, it will take some time to complete.
When finished quit and reinstall OS X from Apple's servers.
Your problem should be resolved, but if it returns, your likely going to need a new hard drive as it's failing.
MacBook stuck at grey screen
