By krisko
Dec 14, 2010
  1. Hi,
    A day ago, on one other forum I asked for help with original message : I have an old IBM R51 laptop. A few days ago IE wanted to upgrade itself from version 7 to IE8. Since that day, my laptop run slow, cannot watch BS player (or other - slide, freeze etc.). I have removed IE8 and downgraded IE back to IE7, but problems still remained. and since that day In my task manager, in processes, I have somethimes 30 Q1xtlstD.exe (user name: SYSTEM) file, and usualy it shows that I`m running iexplorer thought I`m not. Is it some kind of virus or? Thanks in advance!
    I received an answer that it might be a virus and was advised to use 8 step malwer removal instructions. I started to do so, and after first step, antivirus scanning the .exe virus in question was removed. After this step, I started to get blue screen and message: STOP: c000021a {Fatal System Error} The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000005 (0xc0000000 0xc0000000). The system has been shut down. It happens every 5 or so minutes so I don`t have enough time to do other steps because the system just reboot itself. Does anybody have some clue what is goin on? Is it clever to suffer with this or shall I just reinstall windows?
    Thanks guys in advance
  2. Bobbye

    Bobbye Helper on the Fringe Posts: 16,335   +36

    I am unable to identify the process you mention. Too bad the other forum didn't keep you long enough to determine the cause of the BSOD. Please do the following to see if we can get some information:

    How to troubleshoot a "STOP 0xC000021A" error
    The STOP 0xC000021A error occurs when either Winlogon.exe or Csrss.exe fails. When the Windows NT kernel detects that either of these processes has stopped, it stops the system and raises the STOP 0xC000021A error. This error may have several causes. Among them are the following:
    • Mismatched system files have been installed.
    • A Service Pack installation has failed.
    • A backup program that is used to restore a hard disk did not correctly restore files that may have been in use.
    • An incompatible third-party program has been installed.
    If any of these causes apply to you, please see this for Resolutions:
    The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000005 Causes:
    This is usually an Access Violation -
    Or it can be caused by a faulty memory module
    Internet Explorer Application failed to initialize properly> ""The Application Has Failed to Initialize Properly" "
    Bottom line for cause is usually damaged/corrupt files on your computer and this prevents programs from running smoothly and good way to fin the files is to do Registry scan. But I do not send a newbie to do a Registry scan! If we can get the system stable enough, I can see Registry entries in the logs generated by the scans.

    Please work on the first part and see if you can resolve anything there. Do you have a flash drive? IF you can download the scanning program to it and install them on the problem computer. We might be able to find an entry pointing to the malware.

    Get me as much info as you can about Q1xtlstD.exe The spelling must be exact. Do a right click> Properties on one of the files and see if there is any information available- this includes size of the file, whether it has just been created of it it's been modified..
    IT will depend on what you're trying to do at the time your get the error message

    When you get the next SOD, note the time on your computer clock. I'm going to have you check the Event Viewer for Errors that correspond to the BSOD and Errors are time-coded:

    Since you're crashing, we can get some info using Safe Mode. There will be Errors saying 'can't start in Safe Mode'- maybe a group of them. You can ignore these:

    Start> Run> type in eventvwr

    Do this on each the System and the Applications logs:
    [1]. Click to open the log>
    [2]. Look for the Error>
    [3] .Right click on the Error> Properties>
    [4]. Click on Copy button, top right, below the down arrow >
    [5]. Paste here (Ctrl V)
    • You can ignore Warnings and Information Events.
    • If you have a recurring Error with same ID#, same Source and same Description, only one copy is needed.
    • You don't need to include the lines of code in the box below the Description, if any.
    • Please do not copy the entire Event log.

    Errors are time coded. Check the computer clock on freeze.
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