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Tried the other solution on Mavericks... doesn't seem to work. This did work for me with windows 8.1 64 bit: http://apple.stackexchange.com/a/62700/49601


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Hard disk drive failure A few weeks ago I found similar symptoms with a colleague's iMac: sometimes it behaved as if no drive was installed sometimes during normal use, the Mac stopped working (not a total freeze; the reported symptoms were as if there was an I/O issue) – this was less likely to occur if the Mac was cool in FireWire target disk mode, ...


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Core Storage If FileVault 2 is enabled for the OS X startup volume, then EfiLoginUI will present a graphic login dialogue before the start of OS X – seconds after the startup chime. If the startup key combination is timely, then startup should proceed to single user mode after a user's passphrase has been entered. Firmware Whilst I don't know the model ...


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I'm very excited that to say that booting Windows fixed itself. My machine: MBP 2010. OSX Fuse installed. Recent update on one OSX partition to Mavericks. My machine automatically ran its CHKDSK function and restored its own ability to boot. It found orphaned files and repaired the links. If you can figure out how to force CHKDSK to start you may find ...


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I used Disk Warrior and it fixed the problem.


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Actually Mavericks since 10.9.3 has had a filesystem bug where files are not deleted properly, thus the disk "fills up" with files that don't exist, and then when you try and repair it it fails the first time, but may work if you try again.


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The problem is that the system goes into a fail-safe mode when the directory structure cannot be presumed to be safe for a new write. You did the correct triage step by booting into recovery mode and attempting to repair the volume with Disk Utility. At this point, you should back up any files you need. Test that your backup is complete and run Disk ...


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There are times when Apple's 'Disk Utility' software isn't as thorough at repairing problems that other applications may be. I've had 'Disk Utility' tell me that drives are fine, but it is not until after running a program like 'Disk Warrior' (that replaces the Directory structure), that the hard drive feels 'normal' again. This isn't to plug any particular ...


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I also had and solved my MacBook Pro Lion's problem manifested by the endless spinning wheel under the apple during boot. I'll describe all the things I've tried below, but what what I ended up having to do is to buy a new internal hard drive and fresh install Mac on it. What you can try (might fix the problem if your HDD is not broken): Verbose safe boot ...


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Your black screen, power light on steady, no chime: indicates the POST / BootROM failure! BootROM When you turn on the power to a Mac, it activates the BootROM firmware. BootROM, which is part of the computer’s hardware, has two primary responsibilities: It initializes system hardware and it selects an operating system to run. Two ...


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If it happens you mess it up, you can download it from Apple. EFI and SMC firmware updates for Intel-based Macs This article lists firmware updates that were released for Intel-based Macs. They update the firmware that originally shipped from the factory. If your computer isn't on this list, then you don't need an update to the factory firmware.



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