Need Help With a Weird Computer Problem

[MikeS21]

I'm running Windows XP on a Dell Pentium 4 Computer.

On a couple of occassions today, I have re-booted my machine. When I got to the log-on screen and attempted to log-on, an error message pops up that says "Visual Basic Runtime Error." It proceeds to describe a problem with the logon.exe file. Then Windows kicks out to the all blue screen and says: "Logon Error" and gives a code of "c000021a" (Fatal System Error).

NOTE: This does not happen every time I boot the machine. I tried to recreate the error and it gave the same error about two times out of ten reboots. It does not seem to make a difference whether it's a hard boot or a soft boot.

A friend of mine suggested running Checkdisk, and I will do that when I get home. Anyone have any other ideas? I went to Microsoft's Knowledge Base, but didn't seem to find exactly the right information.

Thanks!

[TeamMorris]

If nothing else works, call Dell support (1-800-624-9896). I had some major problems about 3 weeks ago and they were awesome!! I have heard nothing but bad stuff about Dell support but I have nothing but good things to say!

[ochre]

Here are a few links to knowledge base articles that may be related to the problem you are having. To sum up the problem, basically something is causing logon.exe to fail; Winxp can't/won't start without it.

http://support.microsoft.com/?kbid=316503
GoBack Causes a Stop Error C000021a

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


Error Message: Stop c000021a {Fatal System Error} The Session Manager Initialization System Process...
http://support.microsoft.com/default...b;en-us;317189

Security Accounts Manager Initialization Failed" Error Message When You Start Windows XP
http://support.microsoft.com/default...b;en-us;316751

Stop 0x21a" Error Message Occurs If You Download a RIPrep Image
http://support.microsoft.com/default...b;en-us;308299

or try reinstalling windows xp

Reinstallation of XP:
http://support.microsoft.com/default...;en-us;Q315341