Fatal system errors when booting up

[Dave Rado]

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

 

[meerkat]

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]

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

 

[mohamed.samsudeen]

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