Windows 7 - Won't boot - 0xc0000001

A user brought his laptop to me complaining that it won't boot.

The laptop is:
Dell E5500
250GB HD
2GB RAM
Windows 7

No peripherals are attached to the laptop.

The error screen is:
Windows Boot Manager

Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:

1. Insert your Windows installation disc and restart your computer.
2. Choose your language settings, and then click "Next."
3. Click "Repair your computer."

If you do not have this disc, contact your system administrator or computer manufacturer for assistance.

Status: 0xc0000001

Info: An unrecoverable error has occurred.

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I've tried the steps outlined above and get this error:
Problem Event Name: StartupRepairOffline
Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 100
Problem Signature 05: ExternalMedia
Problem Signature 06: 1
Problem Signature 07: NoRootCause
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

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The problem persists.

I've tried the steps outlined at:
http://support.microsoft.com/kb/927392/en-us
With help from:
http://support.microsoft.com/kb/300415

The problem persists.

bonipakAsked:
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rcombisConnect With a Mentor Commented:
You may have some disk errors on the hard drive.

Pop the hard disk out of the laptop.  Connect it to another Windows 7 machine.  (I have a little device that connects Sata to USB that works well for this)  There are multiple ways to do this.

When the machine recognizes the disk, run a disk repair on it.  Right click on the disk, Tools tab, Check Now.  Select both options.  Run this and see if it detects any errors.  You should be able to view them in the event viewer.

Now try booting the drive and your above steps again.

Let me know how it goes.
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bonipakAuthor Commented:
I've tried system restore without success as well.
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bonipakAuthor Commented:
I was able to follow your recomendations exactly. I used a Sata to USB adaptor and scanned the disc in Windows 7.

It doesn't look like it detected any errors on the drive. I've attached a screenshot of the scan results as well as the Event Viewer entry.

This morning, booting straight off the hard disk resulted in the same error: 0xc0000001

Automatic Startup Repair returned a slightly different Problem signature:
[code]
Problem Event Name: StartupRepairOffline
Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 21201071
Problem Signature 05: ExternalMedia
Problem Signature 06: 3
Problem Signature 07: NoRootCause
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
[/code]

Next steps:
1. bootrec /rebuildbcd
    Scanning all disks for Windows installations.

    Please wait, since this may take a while...

    Successfully scanned Windows installations.
    Total identified Windows installations: 0
    The operation completed successfully.
2. bcdedit /export C:\BCD_Backup
    c:
    cd boot
    attrib bcd -s -h -r
    ren c:\boot\bcd bcd.old
    bootrec /RebuildBcd
        Scanning all disks for Windows installations.

    Please wait, since this may take a while...

    Successfully scanned Windows installations.
    Total identified Windows installations: 1
    [1] C:\Windows
    Add installation to boot list? Yes(Y)/No(N)/All(A): [B]Y[/B]
    The operation completed successfully.

I restarted the system and I was met with the same initial error screen:
[code]
Windows Boot Manager

Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:

1. Insert your Windows installation disc and restart your computer.
2. Choose your language settings, and then click "Next."
3. Click "Repair your computer."

If you do not have this disc, contact your system administrator or computer manufacturer for assistance.

Status: 0xc0000001

Info: An unrecoverable error has occurred.
[/code]

Unfortunately the problem persists.

I would very much like to avoid reinstalling the OS.

Thanks for your reply.
Log Name:      Application
Source:        Chkdsk
Date:          9/1/2010 7:29:31 PM
Event ID:      26214
Task Category: None
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      
Description:
Chkdsk was executed in read/write mode.  

Checking file system on H:
Volume label is OS.

CHKDSK is verifying files (stage 1 of 5)...
  147200 file records processed.                                         

File verification completed.
  150 large file records processed.                                   

  0 bad file records processed.                                     

  2 EA records processed.                                           

  92 reparse records processed.                                      

CHKDSK is verifying indexes (stage 2 of 5)...
  195076 index entries processed.                                        

Index verification completed.


CHKDSK is verifying security descriptors (stage 3 of 5)...
  147200 file SDs/SIDs processed.                                        

Security descriptor verification completed.
  23939 data files processed.                                           

CHKDSK is verifying Usn Journal...
  33755928 USN bytes processed.                                            

Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
  147184 files processed.                                                

File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
  25066245 free clusters processed.                                        

Free space verification is complete.
Windows has checked the file system and found no problems.

 243340287 KB total disk space.
 142744316 KB in 122916 files.
     76480 KB in 23940 indexes.
    254511 KB in use by the system.
     65536 KB occupied by the log file.
 100264980 KB available on disk.

      4096 bytes in each allocation unit.
  60835071 total allocation units on disk.
  25066245 allocation units available on disk.

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Chkdsk" />
    <EventID Qualifiers="0">26214</EventID>
    <Level>4</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2010-09-02T02:29:31.000000000Z" />
    <EventRecordID>21362</EventRecordID>
    <Channel>Application</Channel>
    <Computer>mike-laptop.bonipak.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>

Checking file system on H:
Volume label is OS.

CHKDSK is verifying files (stage 1 of 5)...
  147200 file records processed.                                         

File verification completed.
  150 large file records processed.                                   

  0 bad file records processed.                                     

  2 EA records processed.                                           

  92 reparse records processed.                                      

CHKDSK is verifying indexes (stage 2 of 5)...
  195076 index entries processed.                                        

Index verification completed.


CHKDSK is verifying security descriptors (stage 3 of 5)...
  147200 file SDs/SIDs processed.                                        

Security descriptor verification completed.
  23939 data files processed.                                           

CHKDSK is verifying Usn Journal...
  33755928 USN bytes processed.                                            

Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
  147184 files processed.                                                

File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
  25066245 free clusters processed.                                        

Free space verification is complete.
Windows has checked the file system and found no problems.

 243340287 KB total disk space.
 142744316 KB in 122916 files.
     76480 KB in 23940 indexes.
    254511 KB in use by the system.
     65536 KB occupied by the log file.
 100264980 KB available on disk.

      4096 bytes in each allocation unit.
  60835071 total allocation units on disk.
  25066245 allocation units available on disk.
</Data>
    <Binary>003F0200B23D02002D27040000000000531000005C0000000000000000000000</Binary>
  </EventData>
</Event>

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Capture.JPG
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rcombisCommented:
Have you tried these steps?

1. Insert your Windows installation disc and restart your computer.
2. Choose your language settings, and then click "Next."
3. Click "Repair your computer."

I know you said you want to avoid doing a total re-install of the OS but the repair install is somewhere in between and it won't mess with your porgrams/files.
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bonipakAuthor Commented:
Yes, I've tried those steps.

The "Repair your computer" option does scan and has said it found problems which it corrects but upon restarting, I always end up back at the 0xc0000001 error screen.

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bonipakAuthor Commented:
The last time I ran "Repair your computer" I got this:
Problem Event Name: StartupRepairOffline
Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 21201071
Problem Signature 05: ExternalMedia
Problem Signature 06: 4
Problem Signature 07: NoRootCause
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

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rcombisCommented:
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bonipakAuthor Commented:
I appreciate the help. I have tried both the solutions you in your last suggestion and end up having to reimage the laptop... (time constraints and all)

Thank you for your troubleshooting ideas.
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