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unmountable_boot_volume

Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

unmountable_boot_volume

Hi
I'm having a problem with one of my computers, that has got me at a loss.  It's blue screening everytime on boot after the windows logo (on XP Pro).
The error message is:
A problem has been detected and windows shut down to prevent damage to your computer.
UNMOUNTABLE_BOOT_VOLUME
...
...
***STOP: 0x000000ED (0x8666AA88,0xC0000006,0x00000000,0x00000000)

I've been through safe mode etc and get the same with that.
I tried to boot using the Windows CD to go into the recovery console, but after it goes through loading drivers etc... it says "Starting Windows" across the bottom, then flashes up with the 1st Windows Setup screen, then blue screen's with the error:
***STOP: 0x0000007B (0xF78E1524,0xC00000034,0x00000000,0x00000000)
.
I've tried a new hard drive in the system with a new cable, but get the same errors.
Any suggestions from anyone?
Many thanks
Phil
15 REPLIES
Rikaitch
Grafter
Posts: 212
Registered: ‎08-06-2007

Re: unmountable_boot_volume

Try resetting your bios to "failsafe defaults." It's a long shot, but it can help. Are you running a SATA drive in compatibility mode? Sometimes that can play up. Also, can you boot from a live Cd like ubuntu or Knoppix? If not, then suspect your IDE controller might be ill.
Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

Re: unmountable_boot_volume

I was thinking about the BIOS this morning.  I'll give that a go tonight.  It is a SATA drive (along with the CD writer), not sure about compatibility mode though.  I've not tried a live cd yet.  I might do one at work today and try at home tonight.  I've managed to boot to a linux based utility cd, which found problems on the hard drive, which is what prompted me to try a new one.
Phil
Rikaitch
Grafter
Posts: 212
Registered: ‎08-06-2007

Re: unmountable_boot_volume

Just had a thought of a PC I did recently... As a last resort, or if you're very brave, try downloading the latest BIOS, and reflashing it. It's a nerve racking experience, but it can help. Just make 110% sure you have the right bios, because the wrong one would make your motherboard about as useful as a bodykit on a Lada.
Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

Re: unmountable_boot_volume

I've already downloaded one!  The most recent one on the dell site is only for windows, but I've downloaded the previous one, that I could do from a boot disk.  Was planning on getting it ready here, then checking if it is newer when I get home tonight.  If it is, and it works, I could always download and install the latest one when windows is back up and running.
Phil
Community Veteran
Posts: 1,576
Thanks: 3
Registered: ‎13-04-2007

Re: unmountable_boot_volume

Its an unusual set of error messages normally the second parameter is 0xC0000032.
There are several possibilities
Unable to mount drive can be a boot sector virus the wrong driver for the boot volume (like trying to load a intel driver for AMD. The drive is corrupt.
The second part of the error is something not loading properly.
When you boot from the windows cd do you have the dell drivers for the disk controller? It gives you the option to press F6 and load drivers but you have to be quick and it looks to a floppy for them. If you can get these drives and see if you can get into recovery consul with it.
If you can once get recovery consul  up type
FIXBOOT
then try
fixmbr
and the final one
chkdsk c: /f
You may have to  reboot between these.
You could try the drive as a second drive in another pc and see if it can be read but could be dangerous if its a virus but being a boot sector virus it should activate.
If you could get a live AV cd and give that a go.
Check cables and reduce the bios to the failsafe if you have one.
Any new hardware added lately?  Try removing everything you can network, printers any plug in cards Disable any udma you can like the printer port
Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

Re: unmountable_boot_volume

Thanks samuria
I've been playing with it a little more last night.  I disabled the raid option on the hdd controller (since its not using raid anyway), and managed to get into windows setup with a new hard drive.  I left it installing windows overnight, but didn't get the chance to check it last night.
I'll have another look at the dell site shortly to see if there are any drivers that I can load during set up to get into the recovery console.
There wasn't any hardware added before this happened.  Everything except keyboard mouse and monitor are disconnected as its in my office at home now.  It's usually in Church as it's the computer used to power the main projector.
I'll look around for some live AV CD's.  Anyone got any suggestions of a good one?
Thanks
Phil
pierre_pierre
Grafter
Posts: 19,757
Registered: ‎30-07-2007

Re: unmountable_boot_volume

PC answers Mag issue 186 - July 08 had a DVD with lots of different Multimedia progs Not sue of the publication date.  (Personal Computer World current edition is dated October) it doesnt look like they are and non install but they are all free.
pierre_pierre
Grafter
Posts: 19,757
Registered: ‎30-07-2007

Re: unmountable_boot_volume

Quote
I'll look around for some live AV CD's.  Anyone got any suggestions of a good one?

Abreviations, dont we hate them?  You were mentioning video projection the wants, I assumed Audio Visual, but did you mean Anti Virus?  Huh
Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

Re: unmountable_boot_volume

Thanks pierre
I may start asking some AV questions once I've sorted my other problem by installing an AV app!  Tongue
Phil
pierre_pierre
Grafter
Posts: 19,757
Registered: ‎30-07-2007

Re: unmountable_boot_volume

um er maybe Cool  the current mag is 188, think if your are interested might be able to post them here for you, just checking file sizes or othe links.
pierre_pierre
Grafter
Posts: 19,757
Registered: ‎30-07-2007

Re: unmountable_boot_volume

info if that is what you want  Crazy
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Njal
Grafter
Posts: 290
Registered: ‎30-07-2007

Re: unmountable_boot_volume

Superuser
Superuser
Posts: 2,941
Thanks: 643
Fixes: 6
Registered: ‎06-04-2007

Re: unmountable_boot_volume

Thanks guys.
I think I've sorted it now.  Not sure how exactly, I tried so much!  I eventually managed to install XP on another drive.  When I was there I flashed to the latest bios.  I then played about in the bios for a while, and eventually managed to get to the recovery console with the original hard drive, where I can chkdsk, fixboot, fixmbr etc...  After all that I managed to get into Windows, which was behaving a little stange.  I've now gone to an earlier restore point, re-installed Anti Virus, and left it this morning doing another disk check.  One thing I couldn't do last night was get in to Windows Update.  It was giving me a stange error, and the help was no use at all with it.  I'll look into that tonight though.
Thanks for all your suggestions.
Phil
Rikaitch
Grafter
Posts: 212
Registered: ‎08-06-2007

Re: unmountable_boot_volume

Windows Update? I'm punting in the dark here, but maybe you have service pack 3, after upgrading. If so, Windows Update doesn't always work with really strange "Update failed to install" messages and the yellow shield then lets you know there's updates available. It's a real pain, but past experience meant I ended up here. It might not be the oddity you're encountering, but then again it might be.