Analyzing WinXP BSOD (STOP: C000021A)

J

JC419

Weaksauce
Joined
Jun 17, 2003
Messages
94
I was able to get the following info after running the user.dmp file from Dr. Watson through a debugger (cut and paste from what looked most important):

DEFAULT_BUCKET_ID: APPLICATION_FAULT

PROCESS_NAME: winlogon.exe

ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

READ_ADDRESS: 00eda000

BUGCHECK_STR: ACCESS_VIOLATION

LAST_CONTROL_TRANSFER: from 01026276 to 7c9012f1

STACK_TEXT:
0006f634 01026276 00ed9ff8 0006f678 00000104 ntdll!RtlInitUnicodeString+0x1b
0006f890 01026506 0006f8a8 00000000 00079840 winlogon!GetScreenSaverInfo+0x3fa
0006f8d4 00000000 00000000 00000000 00000002 winlogon!RunScreenSaver+0x6e

It originally referenced an error regarding winlogon.exe with the faulting module being ntdll.dll. Would it be safe to say it was something video related since it's referencing something about starting the screensaver in the above info? If it matters this was on an Optiplex 320.
 
Errors with NTLDR or Winlogon.exe usually point me to a simple windows repair, this should almost always fix any problems with those files and your program settings and data will stay the same.

If you do not want to try that you could try safe mode if you get the same thing in safe mode its not a video driver.
 
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