Macintosh hd was eased back to zero in disk utility

I tried several time by holding key c while the disk install inside the mac, but it doesn't work. My screen still being white with one folder + symbol "?" flashing in the centre. I'd like to know what going on there and anyway can fix it.
ld appreciate to someone can help me to restore everything or how to install mac osx again or fix this problem.
My system is MacBook pro earlier 2011 I7

http://support.apple.com/kb/PH10763

Similar Messages

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    You need to boot from your backup disk using:
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      1. Restart the computer.
      2. Immediately after the chime press and hold down the
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      3. Release the key when the boot manager appears.
      4. Select the desired disk icon from which you want to boot.
      5. Click on the arrow button below the icon.
    Once booted from the backup drive then:
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      1. Open Disk Utility in the Utilities folder.
      2. Select the destination volume from the left side list.
      3. Click on the Restore tab in the DU main window.
      4. Select the destination volume from the left side list and drag
           it to the Destination entry field.
      5. Select the source volume from the left side list and drag it to
          the Source entry field.
      6. Double-check you got it right, then click on the Restore button.
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    Once booted from the backup drive you need to partition and format the internal drive:
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    1. Open Disk Utility in your Utilities folder.
    2. After DU loads select your internal hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.
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    4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
    5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
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  • 7-pass, or zero out-Disk Utility Erase Free Space

    Hey Forum,
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    Ala.
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    There is no need to post the same question twice, especially in the same forum.
    Regarding what you can find with Google, an overly simplified or out of date treatment of the topic may lead you to the wrong conclusions. For example, the DoD 5220-22M standard is obsolete (& never recommended a 7 pass erase to begin with) & the 35 pass erase was intended for old, pre-2001 drives.
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    So I followed this steps:
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    So I followed this steps:
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    mac_daddy02,
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    The longer the hard drive remains in use and data are written to it, the greater the risk your deleted files will be overwritten.
    Also visit The XLab FAQs and read the FAQ on Data Recovery.

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    Sorry I don't really understand.... there are no partitions on the drive.  How do I repartition it?
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    Thanks!

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    External 500GB drive is partitioned with 400GB for Mac OS extended (journalling) and 2nd partition formatted today as "ExFAT".
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    Thanks for a quick reply <baltwo>. You’ve answered that it is not a fake message!
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    Hi djblue1969,
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      2. Immediately after the chime press and hold down the
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      Manufacturer:          DP
      Device Name:          bq20z451
      Pack Lot Code:          0
      PCB Lot Code:          0
      Firmware Version:          3
      Hardware Revision:          2
      Cell Revision:          100
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      Fully Charged:          No
      Charging:          Yes
      Full Charge Capacity (mAh):          5400
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      Condition:          Replace Now
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      Wake on LAN:          Yes
      Current Power Source:          Yes
      Display Sleep Uses Dim:          Yes
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      Wake on Clamshell Open:          Yes
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      ID:          0x0100
      Wattage (W):          60
      Revision:          0x0000
      Family:          0x0085
      Serial Number:          0x00a140cc
      Charging:          Yes
    <Edited By Host>

    Your problem is the cheap battery. No need to post a serial number. I will have a moderator remove it.

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