Windows 8 and 8.1 Forums

BSOD WIN 8.1 on Startup 0xC000021A

  1. #1

    Posts : 2
    windows 8.1

    BSOD WIN 8.1 on Startup 0xC000021A

    My laptop on startup will BSOD (started last week), windows will repair and eventually, I can use F8 then F7 to boot.
    Really appreciate the help in isolating what apps/drivers are causing this.

    Thanks in advance!
    Attached Files

      My System SpecsSystem Spec

  2. #2

    Posts : 660
    windows 8.1

    All 4 dumpfiles are:
      2: kd> !analyze -v
    *                                                                             *
    *                        Bugcheck Analysis                                    *
    *                                                                             *
    The Winlogon process terminated unexpectedly.
    Arg1: ffffc000dba49c40, String that identifies the problem.
    Arg2: 00000000c000003a, Error Code.
    Arg3: 0000000000000000
    Arg4: 0000000000000000
    STOP 0xC000021A: WINLOGON_FATAL_ERROR (Changed in Win8 DP SDK v8.0)
    Usual causes: User-mode device driver, system service, or third-party application, Mismatched system files
    This error occurs when a user-mode subsystem, such as WinLogon or the Client Server Run-Time Subsystem (CSRSS), has been fatally compromised and security can no longer be guaranteed. In response, the operating system switches to kernel mode. Microsoft Windows cannot run without WinLogon or CSRSS. Therefore, this is one of the few cases where the failure of a user-mode service can shut down the system.
    Mismatched system files can also cause this error. This can occur if you have restored your hard disk from a backup. Some backup programs might skip restoring system files that they determine are in use.
    Resolving the Problem
    Running the kernel debugger is not useful in this situation because the actual error occurred in a user-mode process.
    Resolving an error in a user-mode device driver, system service, or third-party application: Because bug check 0xC000021A occurs in a user-mode process, the most common culprits are third-party applications. If the error occurred after the installation of a new or updated device driver, system service, or third-party application, the new software should be removed or disabled. Contact the manufacturer of the software about a possible update.
    If the error occurs during system startup, restart your computer, and press F8 at the character-based menu that displays the operating system choices. At the resulting Windows Advanced Options menu, choose the Last Known Good Configuration option. This option is most effective when only one driver or service is added at a time. If this does not resolve the error, try manually removing the offending software. If the system partition is formatted with file allocation table (FAT), use an MS-DOS startup disk to gain access to the computer's hard disk. If the system partition is formatted with NTFS file system, you might be able to use Safe Mode to rename or delete the faulty software. If the faulty software is used as part of the system startup process in Safe Mode, you need to start the computer using the Recovery Console in order to access the file. If a newly installed piece if hardware is suspected, remove it to see if this resolves the issue.
    Try running the Emergency Recovery Disk (ERD) and allow the system to repair any errors that it detects.
    Resolving a mismatched system file problem: If you have recently restored your hard disk from a backup, check if there is an updated version of the Backup/Restore program available from the manufacturer. Make sure the latest Windows Service Pack is installed
    source: John Carrona BSODindex
    Your 4 dumpfiles are from 26 and 27 december. Did the BSOD happened before?
    What program, application or driver did you install around the time the problem started.
    Did you install a McAfee application or updated this app at time.(found drivers of 16 december 2015).Uninstall it.
    Did you install a 32 bit version of a program or application/driver around that time. Uninstall it.
    You have a Dell inspirion laptop, these laptops have often "customized" OEMdrivers(DELL), did you install or via automatic updates any windows updates with a "generic" windows driver at that moment. Check windows update and uninstall the corresponding KB.
      My System SpecsSystem Spec

  3. #3

    Posts : 2
    windows 8.1

    Thank you.

    There were over 43 windows updates around 20th. Up until then, laptop was behaving.
    I was trying to upgrade to win 10 and some updates was needed so I updated.
    After the updates, it went into infinite loop of crashing, gathering data, repairing.
    By the time I got a hold of a windows recovery disk, it was after xmas.
    I have been dealing with all sorts of BSOD issue since trying to get to win 10.

    1) tried to upgrade to win10.
    2) win update applied 43 updates
    3) next restart it BSOD and went into infinite loop of restarting.
    4) using the win os media, I went into advance and tried to repair. did not work. still bsod
    5) reverted using the last safe point (17th December). Finally I had the advance startup screen appear after BSOD.
    5) tried safe mode. it too did not work and complained about some tdi.sys 0x0000428 error (different than the usual 021a I see from normal boot)
    6) finally used F8-F7 to get windows started.
    7) tried disabling all startup apps using msconfig and it still BSOD.

    I will check windows update for any generic drivers.

    wondering if I went ahead and upgraded to win 10 these issues will go away.

    Thanks again.
      My System SpecsSystem Spec

BSOD WIN 8.1 on Startup 0xC000021A

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