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Bsod code stop: c000021a (fatal error)


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#1 SteveD4

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Posted 21 December 2010 - 06:44 PM

Dell Pc, at first the unit would not boot at all, ran recovery console and chkdsk /r and now the windows xp splash screen comes on and then this blue screen code "Bsod code stop: c000021a (fatal error)".

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#2 coxchris

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Posted 21 December 2010 - 08:58 PM

Hello SteveD4

Welcome to bleeping computer we kind of need a better description of your problem you are having. Upon the error code search i have provide some troubleshooting steps:

Try these steps

Last known good configuration
If the previous steps in this article do not resolve the problem, start the computer by using the last known good configuration. To start the computer by using the last known good configuration, follow these steps:Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

1. Click Start, and then click Shut Down.
2. Click Restart, and then click OK.
3. Press F8 at the indicated time:
* For an x86-based computer: When a screen of text appears and then disappears , press F8. (The screen of text may include a memory test, lines about the BIOS, and other lines.) There may also be a prompt that tells you when to press F8.
* For an Itanium architecture-based computer: After you make your selection from the boot menu, press F8. There may be a prompt that tells you when to press F8.
4. Use the arrow keys to select Last Known Good Configuration, and then press ENTER.

NUM LOCK must be off before the arrow keys on the numeric keypad will function.
5. Use the arrow keys to highlight an operating system, and then press ENTER.

Notes

* Choosing the Last Known Good Configuration startup option provides a way to recover from problems such as a newly added driver that may be incorrect for your hardware. However, it does not solve problems that are caused by corrupted or missing drivers or files.
* When you choose the Last Known Good Configuration option, only the information in registry key HKLM\System\CurrentControlSet is restored. Any changes you have made in other registry keys remain.

If that doesn't work than follow a start up repair by using http://www.sevenforums.com/tutorials/681-startup-repair.html

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#3 Elise

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Posted 23 December 2010 - 12:35 PM

Since this appears to be XP, a startup repair is no option unfortunately.

Most likely winlogon.exe and explorer.exe are infected or missing. First step would be to copy these files over from your XP CD. Please let me know if you have an XP CD at hand (if it is the one you use to access the Recovery Console, it is okay).

regards, Elise


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