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Discussion Starter · #1 ·
My Vista Ultimate won't start :cry:
I have a Dell Vostro 1500 laptop and yesterday I tried to load a Linux live CD, but it didn't detect any hard drives. I went into BIOS and turned off Flash Caching, then switched from AHCI to ATA (diesn't let me do it without disabling flash caching). The live CD still didn't find any hard drives. WinXP CD first time didn't find anything, this time it did, all partitions working for it. I try to boot up, but after about 2 seconds get a BSOD which disappears instantly. I try changing it back to AHCI, turning on Flash Caching, turning off Flash Caching, trying to start it in different ways, it doesn't work. I got into startup repair. After selecting the keyboard language, it asks me to select an operating system, but none are listed. There is a "load drivers" button, but no matter what drivers I load it doesn't display anything.

I click next, it gives me the recover, repair startup, cmd prompt, etc. When I click repair startup, it goes through the whole thing in about 3 seconds and says it completed successfully. In the details of that it has 1 root cause:
Code:
Root cause found:
------------------------
The partition table does not have a valid System Partition.

Repair action: Partition table repair
Result: Completed successfully. Error code = 0x0
Time taken = 7925 ms
When I restart it from there, it displays the same screen and restarts. I try System Restore. It gives me a message
"To perform an offline System Restore, you must specify which Windows installation you would like to restore..."

Then I notice that at the top of the system recovery options it says "Operating system: Unknown on (Unknown) Local Disk"

I can't do Windows Complete PC Restore, it gives me an error with a code (0x08007001F)

Windows Memory Diagnostic Tool doesn't work, I get a "Windows cannot check for memory problems"

I go to command prompt, type in chkdsk /f, it says Chkdsk cannot run because the volume is in use by another process. Would you like to schedule..."
I type in diskpart and this is the first message:

Code:
Microsoft DiskPart version 6.0.6000
Copyright <C> 1999-2007 Microsoft Corporation.
On computer: MINWINPC

An error was encountered while acquiring information for volume:
\\?\GLOBALROOT\Device\Harddisk0\DR0.
DiskPart will not be able to list all information for this object.

DiskPart encountered an unexpected error,
Check the system event log for more information on the failure.
I type select disk 0; select volume 1; select partition 0.
When typing in select volume 1, I get:

Code:
An error was encountered while acquiring information for volume:
\\?\GLOBALROOT\Device\Harddisk0\DR0.
DiskPart will not be able to list all information for this object.

DiskPart encountered an unexpected error,
Check the system event log for more information on the failure.

DiskPart encountered an unexpected error,
Check the system event log for more information on the failure.

DiskPart encountered an unexpected error,
Check the system event log for more information on the failure.

Volume is the selected volume.
However, when I type in the other 2, I just get "Partition 0 is now the selected partition".

I type in list disk, this is what I get:
Code:
 Disk ### Status          Size       Free
 -------- --------------- ---------- -------
*Disk 0   Online              149 GB     0 B <----- ???
I type in list volume, I get:
Code:
\\?\GLOBALROOT\Device\Harddisk0\DR0.
DiskPart will not be able to list all information for this object.

DiskPart encountered an unexpected error,
Check the system event log for more information on the failure.

 Volume ### Ltr Label     FS    Type       Size    Status    Info
 ---------- --- --------- ----- ---------- ------- --------- ----
 Volume 0    X  RECOVERY  NTFS  Partition    10 GB Healthy   Boot
*Volume 1                       Partition   136 GB Healthy       
 Volume 2    D                  DVD-ROM        0 B No Media      
 Volume 3                 FAT   Partition   149 MB Healthy   Hidden
I type in assign letter=C:, I get:
Code:
DiskPart encountered an unexpected error.
Check the system event log for more information on the failure.
Pretty much anything else I try to do here with "volume 1", or the corresponding partition, I get that error. Even if I do noerr.

I type in exit, then I type in regedit.exe
I get the registry editor. I go to
HKEY_LOCAL_MACHINE>SYSTEM>MountedDevices and I have this:
Code:
(Default)
\??\Volume{...}
\??\Volume{...}
\DosDevices\D:
\DosDevices\X:
The binary data in both /??/ corresponds to both DosDevices/.
No C:.

However, when I try to boot from the WinLite cd, it's all ready to install it on the "missing" partition, telling me the size, free space, Label (OS), letter (C:), FS, etc.

Also, Dell has a media center called Media Direct. It has a separate button on the laptop, that lets you start the media center without starting windows and with it you can watch DVDs, play CDs or access any media file on the computer. And guess what?
It shows the (OS) C: volume, I can access all the files, play all the music, look at all the pictures, see all the videos. There are no errors, it works.


So, the disk works (if all the other volumes/partitions work...), I can access all the files, etc, there should be just some setting.
Can somebody please help me, I don't want to reinstall windows...


P.S. I tried safe mode, same blue screen, but there was an option "Disable automatic restart on system failure and I got to read the blue screen! Here is what it said:

UNMOUNTABLE_BOOT_VOLUME
...
0x000000ED (0x86A0A290, 0xC000014F, 0x00000000, 0x00000000)
 

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I've never heard of a problem like this before, but it sounds like a well-crafted virus. If you go into your BIOS and look up the screen with the primary disks for what class (CD Drive - (Model # of your CD Drive) Hard Disk - (Model Number of Hard Disk)) do you see your hard disk listed? if not you have some major BIOS issues. If you can start up Vista try logging on and then opening task manager. Go to the processes tab and terminate the processes that either don't have a description, or the processes in which their descriptions look like they are unneeded to run the OS (such as explorer.exe, sidebar.exe, or any office programs) Try running chkdsk again in Command Prompt. If you have recovery disks you should use those or order them from dell.

Hope it works,
 

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Discussion Starter · #4 ·
I can't get into windows. But my HDD is listed. I can get into the HDD through MediaDirect and see all the files. But when repairing, command promp doesn't see C:, diskpart says that it doesn't have a letter assigned and gives me a bunch of errors, chkdsk doesn't work.
 

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this is bad...

im using my guesswork here...


Have you tried recovering via recovering partition? if you can't do that order recovery discs from your computer manufacturer and boot from the CD-ROM drive. You may lose your files, but you'll be able to start windows again. Hope it helps!
 
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