HT204347: How to find the serial number of your MacBook Pro
Learn about How to find the serial number of your MacBook Pro
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Apr 25, 2014 8:16 PM in response to brittneydoyenby Kappy,You cannot force OS X to startup. Either it does or it doesn't. If you want the boot manager, then boot and hold down the OPTION key until the boot manager appears. If this doesn't help, then try posting a clearly understandable question.
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Apr 25, 2014 8:43 PM in response to brittneydoyenby brittneydoyen,I TURN ON MY COMPUTER AND THE SCREEN IS GREY WITH AN APPLE IN THE MIDDLE. THERE IS A CIRCLE THAT IS SPINNING COLORS THAT MOVES WITH THE MOTION OF THE MOUSE, BUT IT WON'T LOAD PAST THIS POINT. HELP PLEASE!
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Apr 25, 2014 8:50 PM in response to brittneydoyenby Melophage,brittneydoyen,
a forced quit is entered using Option-Command-Esc. Depending upon the nature of the freeze, this might not undo the freezing. As a last resort, you can hold down your power button for ten seconds or so to force a shutdown, but note that that has the potential of harming your internal disk if your disk’s heads are currently frozen in contact with your disk’s platters.
EDIT: Only your first two posts were visible when I’d entered this response. Given your third post, this response probably doesn’t apply.
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Apr 25, 2014 8:50 PM in response to brittneydoyenby Melophage,★Helpfulbrittneydoyen,
you can try this: boot your MacBook Pro into Recovery mode by holding down a Command key and the R key as it starts up. Once the OS X Utilities menu appears, select Disk Utility. On the left-hand side of the Disk Utility window, select your internal disk’s boot partition (typically called “Macintosh HD”). On the right-hand side, press the Verify Disk button if it’s not greyed out; if it is greyed out, or if it reports that errors were found, press the Repair Disk button. Once the verification/repair is completed, exit Disk Utility and select Restart from the Apple menu to restart in normal mode. Is it able to get to the login screen now?