STOP: c000021a {Fatal System Error}

Microsoft Windows vista home premium 64-...
May 8, 2011 at 13:17:52
Specs: windows xp pro, pentium 4/512mb
Hi guys I have a windows xp pro pc which boots to the blue screen of death with this error. STOP: c000021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000080 (0x00000000 0x0000000)
The system has been shutdown.
As I have understood the pc had an update and shutdown since then this is as far the pc will go all I would like to do is uninstall the update but I’m not sure which update it is I think it might be googletoolbar update as this seems to be the last file that was updated. as I have slaved the HDD onto a windows vista pc I would like to know how I delete this from the registry or uninstall this update from accessing this as a slave as I have no way of accessing this HDD any other way as all the F8 functions still boots to the blue screen and will not boot from last good boot or recover I have also run a chekdisk which the pc will still boot to the blue screen.

Please could you help Thanks in advanced


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#1
May 8, 2011 at 14:53:30
Mostly (but not always) BSOD's are hardware. I would check all your connections and if necessary clean all card edge connectors with a pencil eraser (including RAM). Pop the RAM and cards in and out a few times afterwards to ensure there is no oxide on the sockets.

The last update might just be coincidence. You could try going to the BIOS screen - if it doesn't make it to that it is not a Windows problem.

Please come back and let us know the outcome.


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#2
May 9, 2011 at 10:41:31
Hi Derek,

The issue i have does seem to be windows as i have tried to run this HDD on a different pc and it boots the same, gets to the windows xp pro screen and it looks like its going into the login screen but then i get the blue screen.

Any help or ideas would be appreciated


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#3
May 9, 2011 at 11:03:43
Yep, kinda sounds convincing although there are often issues when putting an HD onto another computer unless the hardware is identical. Just to labor the point one more step, are you able to get into BIOS, in which case it adds further weight to your thoughts? If not it has to be hardware and we need to be as sure as possible before attacking the software. The mention of Windows Logon Process does fit with a Windows issue tho.

Have you tried Last Known Good Configuration:
http://support.microsoft.com/kb/307852

or Repair Installation:
http://support.microsoft.com/kb/917964

This might also be of interest (although it is 2008):
http://forums.techarena.in/windows-...

Please come back and let us know the outcome.


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Related Solutions

#4
May 9, 2011 at 11:20:58
Hi Derek,

The issue i have does seem to be windows as i have tried to run this HDD on a different pc and it boots the same, gets to the windows xp pro screen and it looks like its going into the login screen but then i get the blue screen.

Any help or ideas would be appreciated


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#5
May 9, 2011 at 11:27:47
Hi Derek,

Yes i am able to get into BIOS doesnt seem to be any settings in there oh did i mention its a dell pc optiplex gx270

Thanks for your help


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#6
May 9, 2011 at 11:49:19
hi derek,

i have tried Last Known Good Configuration and Repair Installation but the out come is the same once the windows xp loading screen comes up it blue screens before the repair can run


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#7
May 9, 2011 at 15:10:34
Re-reading your first post, seems like you got the blue screen when attempting to run chkdsk. If not, see this:
http://kb.wisc.edu/helpdesk/page.ph...

Otherwise you seem to be between a rock and a hard place. If it comes to it you could reload Windows but it would probably be best to hold off on that and see if anyone else comes along with some better idea.

There is one thing you could do to try and prove where the trouble lies. That is to download a Linux Live CD (I use Puppy Linux for this) on another computer. You use the burner softwares "burn an image" facility (ISO) to create a CD. You have to go into BIOS and set the CD drive ahead of the HD then boot with the CD in the drive. It would be an idea to check the CD out on another computer first so that you are confident it works. It will not affect the Windows installation, which will boot normally again when you restart without the CD in the drive.

The Linux CD does not use the HD itself, so if Linux arrives on the faulty computer it would prove that the problem is either Windows or the HD. You can view the HD contents using the Linux CD which would give you some confidence about whether the HD is OK. It also means that if you are forced to re-install Windows you could first save your personal HD files by dragging and dropping them onto a flash drive. Note that Linux is all single click.

Please come back and let us know the outcome.


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