Windows Logon Process system process terminated unexpectedly of 0x00000080

Do you know how fix the following problem below. I can not boot Windows in any shape or form (safe mode and others):

STOP: c00021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly of 0x00000080 (0x00000000, 0x00000000).
jaatieAsked:
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LeeTutorretiredCommented:
This is how to reinstall Windows XP over itself:

http://support.microsoft.com/default.aspx?scid=kb;en-us;315341
How to Perform an In-Place Upgrade (Reinstallation) of Windows XP

Here is a nice visual walk through of the procedure (but unless you have a fast connection, it will take a little time to load the page!):

http://www.webtree.ca/windowsxp/repair_xp.htm

Click on the link for: How To Repair Windows XP by Reinstalling

After you perform an in-place upgrade or repair installation, you must reinstall all updates to Windows.
Here are a couple of Microsoft Knowledge Base articles you should read which concern possible data loss when you reinstall/repair XP:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;312369
You May Lose Data or Program Settings After Reinstalling, Repairing, or Upgrading Windows XP

http://support.microsoft.com/default.aspx?scid=kb;EN-US;312368
Data Loss May Occur After Reinstalling, Repairing, or Upgrading Windows XP
 
Note that, from the above articles, the problem of data loss if your Windows XP was installed by the OEM (Original Equipment Manufacturer) has been corrected if your Windows XP has Service Pack 1 installed.
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LeeTutorretiredCommented:
"I can not boot Windows in any shape or form (safe mode and others)".  Does this include choosing Last Known Good Configuration also?

This MSKB article may be of help:

http://support.microsoft.com/kb/156669/?sd=RMVP
How to troubleshoot a "STOP 0xC000021A" error
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jaatieAuthor Commented:
The "STOP: c00021a {Fatal System Error}  The Windows Logon Process system process terminated unexpectedly of 0x00000080 (0x00000000, 0x00000000)." error also occurs when trying to boot from Last Known Good Configuration.
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LeeTutorretiredCommented:
Uhoh.  Well, according to the article, about  the only two other alternatives are to perform an inplace upgrade or try using Recovery Console.
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LeeTutorretiredCommented:
jaatie, any feedback?  Did you try the repair install?
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