Question : Computer Keeps On Giving Me "c000021a Fatal System Error" Whenever I Try To Log On

Hello hi. I am a college student and this is the last week in the semester. Recently on my home computer, I've been working on my final papers for two of my classes on my personal computer. I was near finishing the paper, when a Windows Automatic Update page popped up on my computer. It did this a lot the past few days, and at this exact time (for which I very much regret), I decided to go ahead and update my system.

After I updated my system, my computer was still working fine. Then, I went to the "Add/Remove Program" dialog box in the Control Panel and saw about 10 newly installed programs, all labeled Hotfix ?????????? (not sure of the exact numbers).

I then decided that I did not want this on my computer after all so I uninstalled these immediately. I then rebooted my computer to completely remove the programs.

When my computer was rebooting, it made it to the blue Windows screen, and right before it was to ask me my logon password it switched to a black screen, and then another blue screen saying.....

"STOP: c000021a (Fatal System Error)
The Windows Logon Process System process terminated unexpectedly with a status of 0xc0000000 (0x0000000 0x00000000). The system has been shut down."

I tried rebooting my computer numerous times and it keeps on getting this fatal error. I went to support.microsoft.com and It told me to download the Windows Utility Repair Registry and I followed those steps but it still did not work.

I am also wondering if reinstalling Windows 2000 will solve this problem. I don't have the disk with me (it is at home), but I can find a way to get one.

I would appreciate it if you can help me out with this problem as soon as possible because I have final papers for two classes on this computer that are due before the end of this week. I would offer more points, but they don't allow me to because this is all I have. Thank You very very much.

Answer : Computer Keeps On Giving Me "c000021a Fatal System Error" Whenever I Try To Log On

>Also, how do I obtain an Ms-Dos disk like you wrote.
You can always get one from http://www.bootdisk.com

>Will reinstalling Windows 2000, and repairing the damage files help at all?
Yes, it should.