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Compaq laptop 'c000021a fatal system error'


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#1 aaaah

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Posted 16 March 2009 - 07:38 PM

After being infected by a variant of the Virut virus it was nessecary to reformat my pc/harddrive (see thread : http://www.bleepingcomputer.com/forums/topic210714.html).
But after doing this I have a new problem and it was suggested to post it here.


After the reformat XP won't boot.

Just get Compaq start screen then XP standard loading screen the loading bar animation runs a few times then computer seemingly restarts and goes back to compaq start screen-then windows xp-then restarts. And just keeps on looping like this.

After turning off the automatic reboot i get this error message

'c000021a fatal system error'

Any ideas what I can do in order to complete reformat/repair xp?

thanks.

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#2 dc3

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Posted 16 March 2009 - 08:20 PM

There is some information missing here, if you were able to turn off the automatic restart then you were able to boot in either normal or safe mode. If you can boot into either of these run chkdsk /r.

Start> Run and type in chkdsk /r (please notice the space between the k and the/) and then click on OK.

A black page with white printing will appear, type in Y, and click on Enter key.

Chkdsk will run when the computer restarts.

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#3 aaaah

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Posted 17 March 2009 - 07:06 AM

I cannot boot into normal or safe, Normal does not work at all and safe loads then says 'there was an error with windows setup'.
I was able to turn off automatic restart in the same menu where you can chose to start in safe mode.
thanks

Edited by aaaah, 17 March 2009 - 07:07 AM.


#4 dc3

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Posted 17 March 2009 - 10:39 AM

If you have the installation disk you can use the Recovery Console to run chkdsk.

Note: You may need to change the boot order in the BIOS so that the CD-ROM is the first device in the boot order to be able to boot from the Windows installation disk.

To run the Recovery Console from the Windows XP startup disks or the Windows XP CD-ROM, follow these steps:

1. Insert the Windows XP startup disk into the floppy disk drive, or insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer.

Click to select any options that are required to start the computer from the CD-ROM drive if you are prompted.

2. When the "Welcome to Setup" screen appears, press R to start the Recovery Console.

3. If you have a dual-boot or multiple-boot computer, select the installation that you must access from the]Recovery Console.

4. When you are prompted, type the Administrator password. If the administrator password is blank, just press ENTER.

5. At the command prompt, type chkdsk /r , and then press ENTER.

6. To exit the Recovery Console and restart the computer, type exit at the command prompt, and then press ENTER.

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#5 aaaah

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Posted 17 March 2009 - 02:59 PM

Thanks, in recovery mode I have a choice of

1: C:\minint
2: C:\WINDOWS
3: D:\MiniNT
4: F:\WINDOWS

I'm not sure which one to chose to run the 'chkdsk /r'?

#6 Romeo29

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Posted 17 March 2009 - 03:07 PM

It doesnt look like you formatted either C: or D: drive. Which partition did you choose when reinstalling Windows XP?

#7 aaaah

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Posted 17 March 2009 - 03:57 PM

I've not reinstalled windows yet I don't think, the reformat instructions suggested that it would automatically begin on restart, but I just get his loop.




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