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Windows 7: BSOD Stop c000021a {Fatal Error} verification of known dll failed

29 Jun 2016   #1
diamndd

win 7 pro 64
 
 
BSOD Stop c000021a {Fatal Error} verification of known dll failed

I have see many posts on this but i am still stalled and wanted to see if i could generate an aha moment from someone.
I am sorry for the length but I have tried many things before posting this.
Here is what I have done so far:

Start 1. F8 disabled auto restart on system failure.
Startup failed –BSOD
Stop c000021a {Fatal system Error}
The verification of a known dll failed system process terminated unexpectedly with
A status of 0xc00012f (0x00322780 0x00000000)
The system has been shut down

I shut down the computer

F8 at startup

Restart 2 attempted to use last known good configuration
Startup failed –BSOD
I shut down the computer

Restart 3 attempted boot into safe mode
Startup failed- BSOD
I shut down the computer

Restart 4 dissable drivers
Startup failed – BSOD
I shut down the computer

Restart 5 - Bootlog (creates ntbtlog.txt)
Windows appeared to be starting – Logo appeared and remained on screen for
Over 20 mins then BSOD

Restart 6 - Directory services restore mode
Startup failed – BSOD
I shut down the computer

Restart 7 - debugging mode
Startup failed -- BSOD
I shut down the computer

Restart 8 – Low video resolution
Startup failed -- BSOD
I shut down the computer

I then ran the win 7 disc WRE

Start 1 Startup repair
Could not repair automatically
Problem Event Name startup repair offline

Problem Signature 01 0.0.0.0
Problem Signature 02 6.1.7600.16385
Problem Signature 03 unknown
Problem Signature 04 2199870
Problem Signature 05 auto failover
Problem Signature 06 39 (I have tried this a number of times hence the 39)
Problem Signature 07 Corrupt File

OS version 6.1.7600.2.0.256.1
Locale ID 1033


Start 2 System Restore (Only 2 restore points were offered)
"System restore attempted to restore the system for several minutes."
System restore did not complete successfully. Your computers files and settings were not
Changed.

The details section displayed.
Details:
System Restore failed to extract the file (D:\Users\Dan\Downloads\Bytecc_floppy_
Disk_Drive_Driver_update_01-2014.exe) from the restore point.
The restore point was damaged or was deleted during the restore.

(The bytecc floppy was an external floppy drive i attempted to incorporate into the system for archiving some old stuff, but it never really worked. but that was a while ago )

I tried both of the restore points that the system offered but they both failed.

Start 3 Command Prompt
Attempted SFC /scannow
Failed There is a system repair pending which requires a reboot to complete. Restart windows and run sfc again.
I tried this a number of times and received the same message.

Start 4 Command Prompt
Ran chkdsk /f
Error cannot run because the volume is in use by another process. It may run if this volume is dimounted first. Force dismount y/n
After I said no a couple of times then I tried yes

Ran chkdsk /f
Windows replaced bad clusters in file 259751 of name\windows\prefetch\readyB~1\tracc6.fx

Start 5 ran sfc again
Failed There is a system repair pending which requires a reboot to complete. Restart windows

Start 6 tried system restore again
Same error as before.

Start 7 Ran startup repair again
Did this a number of times with the “Could not repair automatically” error

Start ??? Ran startup repair again
This time there was a different msg.
Could not detect a problem

Diagnostic repair log
Last successful boot time 5/15/2016 10:18:47 am
Number of repair attempts 43 (said I tried this a lot)

The report is lengthy but the was one issue
Root cause found
----------------------------
A patch is preventing the system from starting

Repair action: system restore
Result: Failed. Error code= 0x490
Time taken= 0ms

Repair action: system restore
Result: Failed. Error code= 0x490
Time taken= 0ms

Repair action: system files integrity check and repair
Result: Failed. Error code= 0x490
Time taken= 801736 ms

Then at the end of the details

Session details
-----------------------------
System disk= \device\harddisk0
Windows directory = d:\windows
Autochkrun=0
Number of root causes=1

In the details report many of the test came back with a, “OS booted successfully” msg

So that is it so far. Anyone think I have a prayer of resolving this. I also cloned the drive just in case. My files seem to be in tact as I am able to see them when I attach the clone to my laptop externally.. but I would rather not rebuild the system from scratch..
Thanks
DC


My System SpecsSystem Spec
.
01 Jul 2016   #2
axe0

Windows 10 Pro
 
 

Hi DC,

This looks like your hard drive is causing the problem, safe mode is a strong indication of hardware & chkdsk finding bad sectors also is a good indication towards the hard drive.

If possible I would ask you to run SeaTools to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use - Windows 7 Help Forums
My System SpecsSystem Spec
01 Jul 2016   #3
diamndd

win 7 pro 64
 
 

Thanx axe0
I will download and run the dos version today and will post results
My System SpecsSystem Spec
.

02 Jul 2016   #4
diamndd

win 7 pro 64
 
 

I ran the Seatools diagnostic, (dos version) and both the short and long test came back with no errors... acoustic seemed negative as well. (Fans were louder)
My System SpecsSystem Spec
02 Jul 2016   #5
axe0

Windows 10 Pro
 
 

Could you run following command please
Code:
chkdsk C: /r
C: is the Windows partition letter, if yours is different use the one you have configured.

/r includes /f, /f marks bad sectors as bad where /r also attempts to recover readable data.
My System SpecsSystem Spec
02 Jul 2016   #6
diamndd

win 7 pro 64
 
 

Hi just ran chkdsk /r
Result: Windows has checked the file system and found no problems.
also: There are 0KB in bad sectors
My System SpecsSystem Spec
03 Jul 2016   #7
axe0

Windows 10 Pro
 
 

An important thing not to forget, what happened before the BSOD occurs?

Could you please provide a screenshot or photo of the disk management in command prompt.
To do this enter following commands
Code:
diskpart
list disk
sel disk 0
list partition
My System SpecsSystem Spec
04 Jul 2016   #8
diamndd

win 7 pro 64
 
 

Hi,
Happy 4th.. I ran the commands. screen shot attached.


Attached Thumbnails
BSOD Stop c000021a {Fatal Error}  verification of known dll failed-image-11-screen-shot-1.jpeg  
My System SpecsSystem Spec
04 Jul 2016   #9
axe0

Windows 10 Pro
 
 

Please answer my question
Quote:
what happened before the BSOD occurs?
My System SpecsSystem Spec
04 Jul 2016   #10
diamndd

win 7 pro 64
 
 

Hi.
After system POST then the
starting Windows splash screen appears and appears to be loading the operating system.. (this lasts for about 45 secs or so) then BSOD flash and it starts the process all over again.
My System SpecsSystem Spec
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