Windows XP and Server 2003 are Windows NT based operating systems. But sometimes, they can cause serious error messages if Windows NT kernel discovers some issues with its integral processes. In critical situations, you may need to take complete backup of data and reformat the hard disk. In case if backup is unavailable, damaged or not updated, you should go for Hard Disk Recovery applications to extract the lost data.

You might encounter following error message with your Windows server or workstation:

“STOP: c000021a {Fatal System Error}

The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0×00000000 0×0000000)

The system has been shutdown.”

This error message is specific to Windows XP (Professional, Media Center and Table PC Edition) and Server 2003 (Standard, Datacenter, Enterprise and Web Edition).

Cause

Windows displays this error message when either winlogon.exe or csrss.exe process fails.

Winlogon.exe is he process related to Windows Login Manager and is responsible for handling tasks like applying secure attention sequence, locking the computer system etc.

CSRSS stands for Client/Server Runtime Subsystem. Csrss.exe is the process responsible for creating and deleting threads and performing console Windows tasks.

It may occur due to the following reasons:

Failed Service Pack installation

Incompatible device driver or system service

Incompatible third-party application

Mismatched system files

Hard disk backup program has not correctly restored some of the files

Solution

You can follow these steps to resolve the issue:

If you have recently installed any service pack, device driver or third party application, try uninstalling or disabling it.

If the problem persists, start the system using Last Known Good Configuration (Windows Advanced Option).

You can perform in-place upgrade of Windows

You can also use Recovery Consoe to remove incompatible software

Reformat the hard disk and restore data using recent data backup. In case of missing or invalid data backup, you can use hard drive recovery software applications. These are special tools that use specific scanning algorithms to analyze corrupted or affected hard drives post data loss. Hard Drive Recovery applications are read-only tools with user-friendly interface. You can use these software in any logical case of data loss like formatted hard disk, accidental file deletion, file system corruption etc.

Stellar Phoenix Windows Data Recovery is a complete hard drive recovery tool to recover lost data. The application offers various advanced features like RAW File Recovery, File Filter, Create Image etc. It is compatible with NTFS5, NTFS, vFAT, FAT32 and FAT16 file systems. This Hard Drive Recovery supports Windows Vista, XP, 2003 and 2000.

Simpson Raid is a freelancer for Stellar which offers data recovery software and file recovery programs for different OS and file system.

Article Source:http://www.articlesbase.com/data-recovery-articles/stop-error-0xc000021a-and-recovery-900393.html

Written by: OSAblogger / Bill Wardell - Please Read Our Latest OSA eZine Edition

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