Fatal system errors when booting up

Recently when booting up I have frequently but not always get the
following message before getting to the login screen:

"STOP: c000021z {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with
a status of
f0x00000402 (0x00000000 0x00000000)
The system has been shut down."

What are the common causes of this?

Dave

"Dave Rado" <dave.rado@dsl.pipex.com> wrote in message
news:1177859436.682566.124100@u30g2000hsc.googlegr oups.com...
> Recently when booting up I have frequently but not always get the
> following message before getting to the login screen:
>
> "STOP: c000021z {Fatal System Error}
> The Windows Logon Process system process terminated unexpectedly with
> a status of
> f0x00000402 (0x00000000 0x00000000)
> The system has been shut down."
>
> What are the common causes of this?
>
No c000021z listed at M$.
But there is a c000021a.
http://support.microsoft.com/kb/156669/en-us

Have you had a look in your Event Viewer for problems ?.

"Dave Rado" <dave.rado@dsl.pipex.com> wrote in message
news:1177859436.682566.124100@u30g2000hsc.googlegr oups.com...
> Recently when booting up I have frequently but not always get the
> following message before getting to the login screen:
>
> "STOP: c000021z {Fatal System Error}
> The Windows Logon Process system process terminated unexpectedly with
> a status of
> f0x00000402 (0x00000000 0x00000000)
> The system has been shut down."
>
> What are the common causes of this?
>
> Dave
>

Bad power supply, bad RAM, bad hard drive, bad mainboard. (in that
rder) -Dave

On Apr 29, 11:10 am, Dave Rado <dave.r...@dsl.pipex.com> wrote:
> Recently when booting up I have frequently but not always get the
> following message before getting to the login screen:
>
> "STOP: c000021z {Fatal System Error}
> The Windows Logon Process system process terminated unexpectedly with
> a status of
> f0x00000402 (0x00000000 0x00000000)
> The system has been shut down."
>
> What are the common causes of this?
>
> Dave

Spontaneous reboot is a sign of failin psu

"Dave Rado" <dave.rado@dsl.pipex.com> wrote in message
news:1177859436.682566.124100@u30g2000hsc.googlegr oups.com...
> Recently when booting up I have frequently but not always get the
> following message before getting to the login screen:
>
> "STOP: c000021z {Fatal System Error}
> The Windows Logon Process system process terminated unexpectedly with
> a status of
> f0x00000402 (0x00000000 0x00000000)
> The system has been shut down."
>
> What are the common causes of this?
>
> Dave
>

have a look here

http://oca.microsoft.com/en/windiag.asp



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