For the past week when shutting down I get the following 'Blue Screen'
message.

Stop c000021a Fatal error has occurred. Windows logon process. System
process terminated unexpectedly with status 0xc0000005 (0x00000000
0x00000000) System has shut down.

I have not conciously made any change to my system or settings. The
problem does not appear to be having any detremental affect as the PC runs
normally at the next boot up until I close down again
Any idea what this is all about ?

-- Dai Llandod

Re: Error message after shutdown by PA

PA
Fri Mar 28 16:44:50 PDT 2008

What anti-virus application or security suite is installed? What
anti-spyware applications (other than Defender)? What third-party firewall
(if any)?
========================
<QP>
0xC000021A: STATUS_SYSTEM_PROCESS_TERMINATED
This occurs when Windows switches into kernel mode and a user-mode
subsystem, such as Winlogon or the Client Server Runtime Subsystem (CSRSS),
is compromised. Security can no longer be guaranteed. Because Win XP can?t
run without Winlogon or CSRSS, this is one of the few situations where the
failure of a user-mode service can cause the system to stop responding. This
Stop message also can occur as a result of malware infestation or when the
computer is restarted after a system administrator has modified permissions
so that the SYSTEM account no longer has adequate permissions to access
system files and folders.
</QP>
Source: http://aumha.org/a/stop.htm
========================
Run a /thorough/ check for hijackware, including posting your hijackthis log
to an appropriate forum.

Checking for/Help with Hijackware
http://aumha.org/a/parasite.htm
http://aumha.org/a/quickfix.htm
http://aumha.net/viewtopic.php?t=5878
http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
http://mvps.org/winhelp2002/unwanted.htm
http://inetexplorer.mvps.org/data/prevention.htm
http://inetexplorer.mvps.org/tshoot.html
http://www.mvps.org/sramesh2k/Malware_Defence.htm
http://defendingyourmachine2.blogspot.com/
http://www.elephantboycomputers.com/page2.html#Removing_Malware

When all else fails, HijackThis v2.0.2
(http://aumha.org/downloads/hijackthis.exe) is the preferred tool to use.
It will help you to both identify and remove any hijackware/spyware with
assistance from an expert. **Post your log to
http://forums.spybot.info/forumdisplay.php?f=22,
http://castlecops.com/forum67.html,
http://forums.subratam.org/index.php?showforum=7,
http://aumha.net/viewforum.php?f=30, or other appropriate forums for review
by an expert in such matters, not here.**

If the procedures look too complex - and there is no shame in admitting this
isn't your cup of tea - take the machine to a local, reputable and
independent (i.e., not BigBoxStoreUSA) computer repair shop.
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/


Dai wrote:
> For the past week when shutting down I get the following 'Blue Screen'
> message.
>
> Stop c000021a Fatal error has occurred. Windows logon process. System
> process terminated unexpectedly with status 0xc0000005 (0x00000000
> 0x00000000) System has shut down.
>
> I have not conciously made any change to my system or settings. The
> problem does not appear to be having any detremental affect as the PC runs
> normally at the next boot up until I close down again
> Any idea what this is all about ?
>
> -- Dai Llandod


Re: Error message after shutdown by Dai

Dai
Sat Mar 29 06:03:00 PDT 2008


--
Dai Llandod


"PA Bear [MS MVP]" wrote:

> What anti-virus application or security suite is installed? What
> anti-spyware applications (other than Defender)? What third-party firewall
> (if any)?
> ========================
> <QP>
> 0xC000021A: STATUS_SYSTEM_PROCESS_TERMINATED
> This occurs when Windows switches into kernel mode and a user-mode
> subsystem, such as Winlogon or the Client Server Runtime Subsystem (CSRSS),
> is compromised. Security can no longer be guaranteed. Because Win XP canâ??t
> run without Winlogon or CSRSS, this is one of the few situations where the
> failure of a user-mode service can cause the system to stop responding. This
> Stop message also can occur as a result of malware infestation or when the
> computer is restarted after a system administrator has modified permissions
> so that the SYSTEM account no longer has adequate permissions to access
> system files and folders.
> </QP>
> Source: http://aumha.org/a/stop.htm
> ========================
> Run a /thorough/ check for hijackware, including posting your hijackthis log
> to an appropriate forum.
>
> Checking for/Help with Hijackware
> http://aumha.org/a/parasite.htm
> http://aumha.org/a/quickfix.htm
> http://aumha.net/viewtopic.php?t=5878
> http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
> http://mvps.org/winhelp2002/unwanted.htm
> http://inetexplorer.mvps.org/data/prevention.htm
> http://inetexplorer.mvps.org/tshoot.html
> http://www.mvps.org/sramesh2k/Malware_Defence.htm
> http://defendingyourmachine2.blogspot.com/
> http://www.elephantboycomputers.com/page2.html#Removing_Malware
>
> When all else fails, HijackThis v2.0.2
> (http://aumha.org/downloads/hijackthis.exe) is the preferred tool to use.
> It will help you to both identify and remove any hijackware/spyware with
> assistance from an expert. **Post your log to
> http://forums.spybot.info/forumdisplay.php?f=22,
> http://castlecops.com/forum67.html,
> http://forums.subratam.org/index.php?showforum=7,
> http://aumha.net/viewforum.php?f=30, or other appropriate forums for review
> by an expert in such matters, not here.**
>
> If the procedures look too complex - and there is no shame in admitting this
> isn't your cup of tea - take the machine to a local, reputable and
> independent (i.e., not BigBoxStoreUSA) computer repair shop.
> --
> ~Robear Dyer (PA Bear)
> MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
> AumHa VSOP & Admin http://aumha.net
> DTS-L http://dts-l.net/
>
>
> Dai wrote:
> > For the past week when shutting down I get the following 'Blue Screen'
> > message.
> >
> > Stop c000021a Fatal error has occurred. Windows logon process. System
> > process terminated unexpectedly with status 0xc0000005 (0x00000000
> > 0x00000000) System has shut down.
> >
> > I have not conciously made any change to my system or settings. The
> > problem does not appear to be having any detremental affect as the PC runs
> > normally at the next boot up until I close down again
> > Any idea what this is all about ?
> >
> > -- Dai Llandod
>
> I use Outpost firewall and Esset NOD32 antivirus. I am afraid that most of what you say is above my head but thank you very much for taking the trouble to respond. I have made no concious changes to access permissions or logon procedures. I am the sole user and do not use any log in passwords. My online security programs have always given a high degree of protection against virus etc. Are you suggesting that I click on one of the links you give to check that there is no virus present ? I am puzzled why this problem has suddenly started as I cannot think of any changes that I have made.

Re: Error message after shutdown by PA

PA
Sat Mar 29 12:52:27 PDT 2008

Dai wrote:
>>> For the past week when shutting down I get the following 'Blue Screen'
>>> message.
>>>
>>> Stop c000021a Fatal error has occurred. Windows logon process. System
>>> process terminated unexpectedly with status 0xc0000005 (0x00000000
>>> 0x00000000) System has shut down.
>>>
>>> I have not conciously made any change to my system or settings. The
>>> problem does not appear to be having any detremental affect as the PC
>>> runs
>>> normally at the next boot up until I close down again
>>> Any idea what this is all about ?
>>
>> What anti-virus application or security suite is installed? What
>> anti-spyware applications (other than Defender)? What third-party
>> firewall
>> (if any)?
>> ========================
>> <QP>
>> 0xC000021A: STATUS_SYSTEM_PROCESS_TERMINATED
>> This occurs when Windows switches into kernel mode and a user-mode
>> subsystem, such as Winlogon or the Client Server Runtime Subsystem
>> (CSRSS),
>> is compromised. Security can no longer be guaranteed. Because Win XP
>> canâ??t
>> run without Winlogon or CSRSS, this is one of the few situations where
>> the
>> failure of a user-mode service can cause the system to stop responding.
>> This
>> Stop message also can occur as a result of malware infestation or when
>> the
>> computer is restarted after a system administrator has modified
>> permissions
>> so that the SYSTEM account no longer has adequate permissions to access
>> system files and folders.
>> </QP>
>> Source: http://aumha.org/a/stop.htm
>> ========================
>> Run a /thorough/ check for hijackware, including posting your hijackthis
>> log
>> to an appropriate forum.
>>
>> Checking for/Help with Hijackware
>> http://aumha.org/a/parasite.htm
>> http://aumha.org/a/quickfix.htm
>> http://aumha.net/viewtopic.php?t=5878
>> http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
>> http://mvps.org/winhelp2002/unwanted.htm
>> http://inetexplorer.mvps.org/data/prevention.htm
>> http://inetexplorer.mvps.org/tshoot.html
>> http://www.mvps.org/sramesh2k/Malware_Defence.htm
>> http://defendingyourmachine2.blogspot.com/
>> http://www.elephantboycomputers.com/page2.html#Removing_Malware
>>
>> When all else fails, HijackThis v2.0.2
>> (http://aumha.org/downloads/hijackthis.exe) is the preferred tool to use.
>> It will help you to both identify and remove any hijackware/spyware with
>> assistance from an expert. **Post your log to
>> http://forums.spybot.info/forumdisplay.php?f=22,
>> http://castlecops.com/forum67.html,
>> http://forums.subratam.org/index.php?showforum=7,
>> http://aumha.net/viewforum.php?f=30, or other appropriate forums for
>> review
>> by an expert in such matters, not here.**
>>
>> If the procedures look too complex - and there is no shame in admitting
>> this
>> isn't your cup of tea - take the machine to a local, reputable and
>> independent (i.e., not BigBoxStoreUSA) computer repair shop.
>
> I use Outpost firewall and Esset NOD32 antivirus. I am afraid that most
> of what you say is above my head but thank you very much for taking the
> trouble to respond. I have made no concious changes to access
> permissions or logon procedures. I am the sole user and do not use any
> log in passwords. My online security programs have always given a high
> degree of protection against virus etc. Are you suggesting that I click
> on one of the links you give to check that there is no virus present ? I
> am puzzled why this problem has suddenly started as I cannot think of any
> changes that I have made.

[Tip: If you're going to bottom-post your replies, make sure you're
signature is at the end of your post, please.]

Despite the presence of NOD32 (assuming your subscription if current) and
Outpost firewall, the STOP error could be caused by hijackware. It would be
best to at least rule OUT this possiblity, Dai.
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/


Re: Error message after shutdown by Dai

Dai
Mon Mar 31 03:07:01 PDT 2008

Picking up on what you suggested as a possible cause, I ran 'Spybot Search &
Destroy' and it picked up 5 sispicious items which I deleted. I often run
this program but it is rare that anything has got past my firewall & anti
virus. Anyway it looks as though you were right on the button as the
problem has now gone. Thank you for your help.
--
Dai Llandod


"PA Bear [MS MVP]" wrote:

> Dai wrote:
> >>> For the past week when shutting down I get the following 'Blue Screen'
> >>> message.
> >>>
> >>> Stop c000021a Fatal error has occurred. Windows logon process. System
> >>> process terminated unexpectedly with status 0xc0000005 (0x00000000
> >>> 0x00000000) System has shut down.
> >>>
> >>> I have not conciously made any change to my system or settings. The
> >>> problem does not appear to be having any detremental affect as the PC
> >>> runs
> >>> normally at the next boot up until I close down again
> >>> Any idea what this is all about ?
> >>
> >> What anti-virus application or security suite is installed? What
> >> anti-spyware applications (other than Defender)? What third-party
> >> firewall
> >> (if any)?
> >> ========================
> >> <QP>
> >> 0xC000021A: STATUS_SYSTEM_PROCESS_TERMINATED
> >> This occurs when Windows switches into kernel mode and a user-mode
> >> subsystem, such as Winlogon or the Client Server Runtime Subsystem
> >> (CSRSS),
> >> is compromised. Security can no longer be guaranteed. Because Win XP
> >> can�t
> >> run without Winlogon or CSRSS, this is one of the few situations where
> >> the
> >> failure of a user-mode service can cause the system to stop responding.
> >> This
> >> Stop message also can occur as a result of malware infestation or when
> >> the
> >> computer is restarted after a system administrator has modified
> >> permissions
> >> so that the SYSTEM account no longer has adequate permissions to access
> >> system files and folders.
> >> </QP>
> >> Source: http://aumha.org/a/stop.htm
> >> ========================
> >> Run a /thorough/ check for hijackware, including posting your hijackthis
> >> log
> >> to an appropriate forum.
> >>
> >> Checking for/Help with Hijackware
> >> http://aumha.org/a/parasite.htm
> >> http://aumha.org/a/quickfix.htm
> >> http://aumha.net/viewtopic.php?t=5878
> >> http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
> >> http://mvps.org/winhelp2002/unwanted.htm
> >> http://inetexplorer.mvps.org/data/prevention.htm
> >> http://inetexplorer.mvps.org/tshoot.html
> >> http://www.mvps.org/sramesh2k/Malware_Defence.htm
> >> http://defendingyourmachine2.blogspot.com/
> >> http://www.elephantboycomputers.com/page2.html#Removing_Malware
> >>
> >> When all else fails, HijackThis v2.0.2
> >> (http://aumha.org/downloads/hijackthis.exe) is the preferred tool to use.
> >> It will help you to both identify and remove any hijackware/spyware with
> >> assistance from an expert. **Post your log to
> >> http://forums.spybot.info/forumdisplay.php?f=22,
> >> http://castlecops.com/forum67.html,
> >> http://forums.subratam.org/index.php?showforum=7,
> >> http://aumha.net/viewforum.php?f=30, or other appropriate forums for
> >> review
> >> by an expert in such matters, not here.**
> >>
> >> If the procedures look too complex - and there is no shame in admitting
> >> this
> >> isn't your cup of tea - take the machine to a local, reputable and
> >> independent (i.e., not BigBoxStoreUSA) computer repair shop.
> >
> > I use Outpost firewall and Esset NOD32 antivirus. I am afraid that most
> > of what you say is above my head but thank you very much for taking the
> > trouble to respond. I have made no concious changes to access
> > permissions or logon procedures. I am the sole user and do not use any
> > log in passwords. My online security programs have always given a high
> > degree of protection against virus etc. Are you suggesting that I click
> > on one of the links you give to check that there is no virus present ? I
> > am puzzled why this problem has suddenly started as I cannot think of any
> > changes that I have made.
>
> [Tip: If you're going to bottom-post your replies, make sure you're
> signature is at the end of your post, please.]
>
> Despite the presence of NOD32 (assuming your subscription if current) and
> Outpost firewall, the STOP error could be caused by hijackware. It would be
> best to at least rule OUT this possiblity, Dai.
> --
> ~Robear Dyer (PA Bear)
> MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
> AumHa VSOP & Admin http://aumha.net
> DTS-L http://dts-l.net/
>
>

Re: Error message after shutdown by PA

PA
Mon Mar 31 08:22:05 PDT 2008

YW, Dai. I'd still recommend posting your HijackThis log to an appropriate
forum for review by an expert.
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/

Dai wrote:
> Picking up on what you suggested as a possible cause, I ran 'Spybot Search
> &
> Destroy' and it picked up 5 sispicious items which I deleted. I often
> run
> this program but it is rare that anything has got past my firewall & anti
> virus. Anyway it looks as though you were right on the button as the
> problem has now gone. Thank you for your help.
>
>> Dai wrote:
>>>>> For the past week when shutting down I get the following 'Blue Screen'
>>>>> message.
>>>>>
>>>>> Stop c000021a Fatal error has occurred. Windows logon process.
>>>>> System
>>>>> process terminated unexpectedly with status 0xc0000005 (0x00000000
>>>>> 0x00000000) System has shut down.
>>>>>
>>>>> I have not conciously made any change to my system or settings. The
>>>>> problem does not appear to be having any detremental affect as the PC
>>>>> runs
>>>>> normally at the next boot up until I close down again
>>>>> Any idea what this is all about ?
>>>>
>>>> What anti-virus application or security suite is installed? What
>>>> anti-spyware applications (other than Defender)? What third-party
>>>> firewall
>>>> (if any)?
>>>> ========================
>>>> <QP>
>>>> 0xC000021A: STATUS_SYSTEM_PROCESS_TERMINATED
>>>> This occurs when Windows switches into kernel mode and a user-mode
>>>> subsystem, such as Winlogon or the Client Server Runtime Subsystem
>>>> (CSRSS),
>>>> is compromised. Security can no longer be guaranteed. Because Win XP
>>>> can�t
>>>> run without Winlogon or CSRSS, this is one of the few situations where
>>>> the
>>>> failure of a user-mode service can cause the system to stop responding.
>>>> This
>>>> Stop message also can occur as a result of malware infestation or when
>>>> the
>>>> computer is restarted after a system administrator has modified
>>>> permissions
>>>> so that the SYSTEM account no longer has adequate permissions to access
>>>> system files and folders.
>>>> </QP>
>>>> Source: http://aumha.org/a/stop.htm
>>>> ========================
>>>> Run a /thorough/ check for hijackware, including posting your
>>>> hijackthis
>>>> log
>>>> to an appropriate forum.
>>>>
>>>> Checking for/Help with Hijackware
>>>> http://aumha.org/a/parasite.htm
>>>> http://aumha.org/a/quickfix.htm
>>>> http://aumha.net/viewtopic.php?t=5878
>>>> http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
>>>> http://mvps.org/winhelp2002/unwanted.htm
>>>> http://inetexplorer.mvps.org/data/prevention.htm
>>>> http://inetexplorer.mvps.org/tshoot.html
>>>> http://www.mvps.org/sramesh2k/Malware_Defence.htm
>>>> http://defendingyourmachine2.blogspot.com/
>>>> http://www.elephantboycomputers.com/page2.html#Removing_Malware
>>>>
>>>> When all else fails, HijackThis v2.0.2
>>>> (http://aumha.org/downloads/hijackthis.exe) is the preferred tool to
>>>> use.
>>>> It will help you to both identify and remove any hijackware/spyware
>>>> with
>>>> assistance from an expert. **Post your log to
>>>> http://forums.spybot.info/forumdisplay.php?f=22,
>>>> http://castlecops.com/forum67.html,
>>>> http://forums.subratam.org/index.php?showforum=7,
>>>> http://aumha.net/viewforum.php?f=30, or other appropriate forums for
>>>> review
>>>> by an expert in such matters, not here.**
>>>>
>>>> If the procedures look too complex - and there is no shame in admitting
>>>> this
>>>> isn't your cup of tea - take the machine to a local, reputable and
>>>> independent (i.e., not BigBoxStoreUSA) computer repair shop.
>>>
>>> I use Outpost firewall and Esset NOD32 antivirus. I am afraid that
>>> most
>>> of what you say is above my head but thank you very much for taking the
>>> trouble to respond. I have made no concious changes to access
>>> permissions or logon procedures. I am the sole user and do not use any
>>> log in passwords. My online security programs have always given a high
>>> degree of protection against virus etc. Are you suggesting that I
>>> click
>>> on one of the links you give to check that there is no virus present ?
>>> I
>>> am puzzled why this problem has suddenly started as I cannot think of
>>> any
>>> changes that I have made.
>>
>> [Tip: If you're going to bottom-post your replies, make sure you're
>> signature is at the end of your post, please.]
>>
>> Despite the presence of NOD32 (assuming your subscription if current) and
>> Outpost firewall, the STOP error could be caused by hijackware. It would
>> be best to at least rule OUT this possiblity, Dai.
>> --
>> ~Robear Dyer (PA Bear)
>> MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
>> AumHa VSOP & Admin http://aumha.net
>> DTS-L http://dts-l.net/