Unable to login to Windows XP Home Edition

[Anatnas]

A couple of days ago I turned on my Dell Inspiron 700 laptop and received the
message STOP: c000021a (fatal system error) the windows logon process system
process terminated unexpectedly with a status of 0xc0000005 (0x00000000
0x00000000) The system has been shutdown. I have tried rebooting in safe
mode but get multiple *.exe application error and am unable to access
anything, not AOL, IE Explorer, GoogleUpdater. Am at a total loss and don't
even know where to begin. I have 1024MB of memory and 100GB of RAM with 13
available. Any suggestions?

 

[nass]

A couple of days ago I turned on my Dell Inspiron 700 laptop and received the
message STOP: c000021a (fatal system error) the windows logon process system
process terminated unexpectedly with a status of 0xc0000005 (0x00000000
0x00000000) The system has been shutdown. I have tried rebooting in safe
mode but get multiple *.exe application error and am unable to access
anything, not AOL, IE Explorer, GoogleUpdater. Am at a total loss and don't
even know where to begin. I have 1024MB of memory and 100GB of RAM with 13
available. Any suggestions?

Did you install any Hardware/Software recently?
Log into Safe Mode and try to perform System Restore.

In safe Mode click Start >> All programs >> Accessories >> System Tools >>
System Restore and pick up a Restore point to restore your system.
It will do the reboot and the rstore will procedure pay attention to it and
see if it was successful or not.
Or
Try the Last Good known configuration by following these steps here on this
KB:
How to troubleshoot a "STOP 0xC000021A" error
http://support.microsoft.com/kb/156669

Your Computer Restarts Unexpectedly When You Press CTRL+ALT+DELETE to Unlock
Your Computer
http://support.microsoft.com/?kbid=823736

Internet Explorer Maintenance Policies May Cause an Access Violation in
Winlogon
http://support.microsoft.com/?kbid=318666

GoBack causes a Stop error C000021a
http://support.microsoft.com/kb/316503

Make sure the machine clean from malware and viruses by running a full
thorough scan.
HTH.
nass

 

[Pegasus \(MVP\)]

A couple of days ago I turned on my Dell Inspiron 700 laptop and received
the
message STOP: c000021a (fatal system error) the windows logon process
system
process terminated unexpectedly with a status of 0xc0000005 (0x00000000
0x00000000) The system has been shutdown. I have tried rebooting in safe
mode but get multiple *.exe application error and am unable to access
anything, not AOL, IE Explorer, GoogleUpdater. Am at a total loss and
don't
even know where to begin. I have 1024MB of memory and 100GB of RAM with
13
available. Any suggestions?

You might have a corrupted file system or a damaged disk. Back up your
important files (including your EMail files!), then boot into the Recovery
Console and run chkdsk.

Post again if unsure how to back up your files or how to boot into the
Recovery Console.