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Unmountable_boot_volume


wildbill411

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I am getting this BSOD: Unmountable_boot_volume, after getting past the XP start up logo.

I tried doing a XP disc repair but the option was not available.

I also tried mounting the hardrrive in an external usb case but cannot get any of my pc's to recognize it, if I could I would back up the data and do a full reformat.

I ran across this: http://support.microsoft.com/kb/297185 MS document, and realized I ran the application "TuneXP" and enabled "UDMA66" in the hardware settings.

Could this be the reason I cannot boot into windows all the way?

The system is a Dell Inspiron 5150 laptop.

any help is very much appreciated.

thanks IA

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I'm also having the same exact problem as wildbill411.

I'm starting to get the Unmountable_boot_volume BSOD message on my brother's mitac 8080 notebook computer everytime XP boots. Looks like the hard drive on there is almost dead.

One might try Partition Table Doctor to repair/recover an "unmountable" hard drive partition:

http://www.ptdd.com/

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I'm also having the same exact problem as wildbill411.

I'm starting to get the Unmountable_boot_volume BSOD message on my brother's mitac 8080 notebook computer everytime XP boots. Looks like the hard drive on there is almost dead.

One might try Partition Table Doctor to repair/recover an "unmountable" hard drive partition:

http://www.ptdd.com/

did you run the "chkdsk /r" ? it fixed it for me. http://support.microsoft.com/kb/555302

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did you run the "chkdsk /r" ? it fixed it for me. http://support.microsoft.com/kb/555302

I couldn't run CHKDSK /R on any attempt, wildbill411. The unmountable_boot_volume message appeared even before I loaded the XP recovery console from either the XP boot disks or the XP CD. That means I can NOT access CHKDSK at all and have no chance of doing a repair on the hard drive.

The specific unmountable_boot_volume message on my bro's XP laptop was like this:

STOP 0x000000ED [0x85B3BB20 0xC000009C 0x00000000 0x00000000]

Anyway I recently resolved the problem using SpinRite. Loaded the Spinrite boot disk onto the laptop (and ran Spinrite at Level 2) which found and fixed the flawed hard drive sectors and recovered critical data on them. Then after Spinrite was done, I booted up the XP laptop as normal and the unmountable_boot_volume message went away. But I did run CHKDSK /R after XP loaded normally and CHKDSK also found and fixed some more hard drive problems.

Notice that I mentioned "0xC000009C" as part of the unmountable_boot_volume error. Do a Google or Yahoo search on 0xC000009C and you will see that this "status code" indicates a "bad block" or bad sector and will need to be fixed using either CHKDSK /R or a more powerful disk checking tool like SpinRite.

Edited by erpdude8
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