Blue Screen UNMOUNTABLE_BOOT_VOLUME STOP 0×000000ED (0xaaaaaaaa, 0xbbbbbbbb, 0xcccccccc, 0xdddddddd)

Tuesday, March 24, 2009 20:26
Posted in category Software

bsod-unmountable-boot-volume

One of the most dreaded things to see on Microsoft Windows system is the Blue Screen of Death. In this instance, I had a computer show the Blue Screen of Death upon booting claiming:

UNMOUNTABLE_BOOT_VOLUME
STOP 0×000000ED (0xaaaaaaaa,0xbbbbbbbb,0xcccccccc,0xdddddddd)

This error can either be caused by a problem with an IDE cable or the BIOS in which case you just replace the cable or reload the fail-safe default settings in the BIOS. However, most of the time this error is caused by some sort of problem with the volume.

To fix this problem you will need:

  • A copy of the Windows Installation Disc
  • About 1.5hrs of time

Fixing the problem:

  1. Boot up your computer to the Windows Installation Disc (You may need to press a button like F12 to see the boot menu)
  2. When the Windows Welcome Screen loads press the R key on your keyboard
  3. Once you get to the command prompt type chkdsk /r then press Enter
  4. When the check disk is complete you will be returned to the command prompt
  5. Type fixboot and press Enter
  6. When the fixboot is complete, type Exit and press Enter
  7. Your computer should reboot and your problem should be gone.
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3 Responses to “Blue Screen UNMOUNTABLE_BOOT_VOLUME STOP 0×000000ED (0xaaaaaaaa, 0xbbbbbbbb, 0xcccccccc, 0xdddddddd)”

  1. wayne

    wayne says:

    January 4th, 2010 at 6:39 pm

    Please help! Can not boot into Win XP Pro environment. End up with blue screen error:
    Unmountable_boot_volume
    STOP: 0X000000ED (0×86783900,0xC0000015,0×00000000,0×00000000)

    I have tried chkdsk/p – fixboot, and chkdsk /r – fixmbr. But still unsuccessful to boot to Windows normally and have the same error. Here is what I got after running chkdsk /r : The volume appears to contain one or more unrecoverable problems. I got the same message when I ran chkdsk /p. I then ran fixboot and fixmbr (seperatedly). Problem still exists no matter wich command I used. What else can I do?

  2. The I.T. Guy

    The I.T. Guy says:

    January 5th, 2010 at 10:39 am

    Hi Wayne! Have you tried replacing the IDE cable / checking the port? While this error is most commonly fixed by the commands provided, it can sometimes be a problem with the cable connecting to the HDD or the BIOS itself. I would try a new cable & load the fail safe defaults as my next step.

  3. Charlie

    Charlie says:

    May 11th, 2010 at 8:55 pm

    UNMOUNTABLE_BOOT_VOLUME
    STOP: 0×000000ED i have the blue screen of death on my other laptop i get those off but i dont have the installtion disk to fix it like it says up top can someone please help me??

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