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All replies
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Helpful answers
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Feb 19, 2014 5:30 PM in response to B McCoyby John Galt,Back up your data since the symptoms you describe may indicate that your startup volume may be failing.
Boot OS X Recovery by holding ⌘ and r (two fingers) while you start your Mac.
At the Mac OS X Utilities screen, select Disk Utility. Select your startup volume (usually named "Macintosh HD") and click the Repair Disk button. Describe any errors it reports in red. If Disk Utility reports "The volume Macintosh HD appears to be OK" in green then you can be reasonably (though not completely) assured your hard disk is in good working order.
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Feb 19, 2014 6:31 PM in response to B McCoyby Linc Davis,If this started happening without your having made any changes and without a warning of low disk space, then it's likely that the boot drive, or some other hardware component, is failing. Back up all data immediately, then run Apple Diagnostics or the Apple Hardware Test.
Even if the test is negative, you should make a "Genius" appointment at an Apple Store to have the machine tested more thoroughly.
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Feb 19, 2014 7:15 PM in response to Linc Davisby B McCoy,I'm not able to run the hardware test, as I am working with 10.7.4 and you need to be running 10.8.3 to run the test.
Backing up as we speak, which is taking a good chunk of time because of how slow this thing is running.
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Feb 19, 2014 7:16 PM in response to John Galtby B McCoy,Will the recovery mode automatically wipe out OS X?
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Feb 19, 2014 7:24 PM in response to B McCoyby Linc Davis,★HelpfulThe hardware test is independent of what OS is installed. You need the original discs to run it.
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Feb 20, 2014 10:06 AM in response to B McCoyby John Galt,★HelpfulB McCoy wrote:
Will the recovery mode automatically wipe out OS X?
No.
Depending on the age of your MacBook Pro you may be able to run the Internet version of Apple Hardware Test. To do that hold option d while starting your Mac.
It is not likely to reveal anything of use but if it indicates anything other than "No trouble found", reply with its results.
Computers that can be upgraded to use OS X Internet Recovery
About the "Apple Hardware Test does not support this machine" message
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Feb 23, 2014 8:13 AM in response to John Galtby B McCoy,I ran the hardware test, as expected "no trouble found." I made an appointment with the Genius Bar today. Any other thoughts before my appointment? I've got a few hours..
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Feb 23, 2014 8:15 AM in response to Linc Davisby B McCoy,I ran the hardware test, as expected "no trouble found." I made an appointment with the Genius Bar today. Any other thoughts before my appointment? I've got a few hours..
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Feb 23, 2014 8:25 AM in response to B McCoyby John Galt,Back up your data before you go anywhere near a Genius Bar. If they replace your hard disk or erase its contents, don't expect to get it back.
They'll probably ask you if you created a backup, but they might forget. If your answer is "no" they may not hear it, or care.