Re: XP crashes on boot C0000221 STATUS_IMAGE_CHECKSUM_MISMATCH LZ32.dll corruption

Phillip,

Go slow & careful here. Try very hard to startup in Safe Mode.

With due credit to Carsyn Gu at MSFT:
Follow the steps below to expand a file from the Windows XP CD:

1. Click Start, and click Run.
2. Type "MsConfig" (without the quotation marks) and press Enter.
3. Click Expand File.
4. On the File to restore text box, type "lz32.dll" (without the
quotation marks).
5. On the Restore from text box, specify the position of the Windows XP CD.
6. On the Save files in text box, browse to "C:\windows\system32".
Note: I assume your system drive is C and your system folder is
windows. ** Yours may be at WINNT **
7. Click Expand.
8. Restart your computer.
9. Check whether the issue disappears.
<end quote>

Read this article at Microsoft. It covers your error exception code.
STOP: C0000221 Unknown Hard Error or STOP: C0000221 STATUS_IMAGE_CHECKSUM_MISMATCH
Article ID: 101096
http://support.microsoft.com/support/kb/101096/


Also, keep this handy Troubleshoot Windows XP Professional
http://www.microsoft.com/WINDOWSXP/pro/using/howto/gettingstarted/guide/troubleshoot.asp

Post back with progress.
HTH
--
Maurice N
MVP Windows - Shell / User
-----

Philip Andrews wrote:
> Hi Maurice,
>
> "Maurice N ~ MVP" <maurice@xxxxxxxx> wrote in message
> news:ewboQ6brFHA.3228@xxxxxxxxxxxxxxxxxxxxxxx
>> I suggest you Disable automatic restart on system failure. Just to
>> see if
> you can get a STOP code, or if you can login to Safe mode, then it's
> possible you can restart the system in normal mode later on.
>
> Some success right away - a new light-blue screen that I'd glimpsed
> briefly on previous boot attempts.
>
>> When the pc is booting up (after the BIOS has done its POST test
>> and
> before Windows starts loading),
> Tap F8 Function key to get bootup options. Tap & keep repeat tapping
> F8 !
>
>> You will actually see "Disable automatic restart on system failure"
>> as an
> option .
> Select that and give it a try. This option is available if you have
> XP service pack 2.
>
>> Once restart on failure is disabled, you should get a STOP error with
> text --- at the next problem.
> Write it all down, and then start searching for the final solution.
> And post back here with the STOP code & text.
>
>
> Thanks very much - the light-blue screen with white text says:
>
> "STOP Code c0000221 {Bad Image Checksum}"
>
> "The image lz32.dll (LZ32.DLL, for better clarity - those are LLLs,
> not 111s) is possibly corrupt. The header checksum does not match
> computed checksum."
>
> Does this mean that something has corrupted this system file, and
> if so how do I restore it please? Or is it a 'reload' situation? Any
> clues on what might have carried out the attack?
>
>
> Regards,
>
> Philip
.

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