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From: rc on 19 May 2010 17:45
Hello group,

Windows XP machine keeps restarting/rebooting itself. Occasionally it will
perform disk check and then proceed to user login screen. At this point any
attempt to login begets another restart. Usually the disk check runs ok but
occassionally it will mention something close to: " The size of the
\documents & settings\Dee\ntuser.dat.Log entry is not valid." Help. I
don't know how to proceed. Thanks.

--
"If my answers frighten you then you should cease asking scary questions"
- Jules Winnfield (Samuel L. Jackson) in Pulp Fiction


From: philo on 19 May 2010 17:53
On 05/19/2010 04:45 PM, rc wrote:
> Hello group,
>
> Windows XP machine keeps restarting/rebooting itself. Occasionally it will
> perform disk check and then proceed to user login screen. At this point any
> attempt to login begets another restart. Usually the disk check runs ok but
> occassionally it will mention something close to: " The size of the
> \documents& settings\Dee\ntuser.dat.Log entry is not valid." Help. I
> don't know how to proceed. Thanks.
>



start out running a RAM test

also the mfg's harddrive diagnostic
From: Johnw on 19 May 2010 18:06
rc wrote on 20/05/2010 :
> Hello group,
>
> Windows XP machine keeps restarting/rebooting itself. Occasionally it will
> perform disk check and then proceed to user login screen. At this point any
> attempt to login begets another restart. Usually the disk check runs ok but
> occassionally it will mention something close to: " The size of the
> \documents & settings\Dee\ntuser.dat.Log entry is not valid." Help. I
> don't know how to proceed. Thanks.

XP Logon Screen Does not Appear and the Computer Continuously Restarts
http://support.microsoft.com/default.aspx?scid=kb;en-us;310396
http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q310/3/96.asp&NoWebContent=1
Black Startup Screen Is Briefly Displayed, Computer Restarts Repeatedly
http://support.microsoft.com/default.aspx?scid=kb;en-us;314466&Product=winxp
Access the Recovery Console and extract a new copy of the Kernel32.dll
file from the original WinXP CD
http://www.windowsnetworking.com/wxprcons.htm
http://www.bleepingcomputer.com/tutorials/tutorial117.html
http://webcast.broadcastnewsroom.com/articles/viewarticle.jsp?id=8658
http://support.microsoft.com/default.aspx?scid=kb;en-us;307654


From: rc on 20 May 2010 21:12
Thanks group for the infomative solutions. I believe the hard drive is
trying to crash....oh no!! Its hanging up during beginning of boot process.
Thanks again.
"Johnw" <johnmattmel(a)gmail.com> wrote in message
news:ht1nda$8fa$1(a)news.eternal-september.org...
> rc wrote on 20/05/2010 :
>> Hello group,
>>
>> Windows XP machine keeps restarting/rebooting itself. Occasionally it
>> will perform disk check and then proceed to user login screen. At this
>> point any attempt to login begets another restart. Usually the disk
>> check runs ok but occassionally it will mention something close to: " The
>> size of the \documents & settings\Dee\ntuser.dat.Log entry is not valid."
>> Help. I don't know how to proceed. Thanks.
>
> XP Logon Screen Does not Appear and the Computer Continuously Restarts
> http://support.microsoft.com/default.aspx?scid=kb;en-us;310396
> http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q310/3/96.asp&NoWebContent=1
> Black Startup Screen Is Briefly Displayed, Computer Restarts Repeatedly
> http://support.microsoft.com/default.aspx?scid=kb;en-us;314466&Product=winxp
> Access the Recovery Console and extract a new copy of the Kernel32.dll
> file from the original WinXP CD
> http://www.windowsnetworking.com/wxprcons.htm
> http://www.bleepingcomputer.com/tutorials/tutorial117.html
> http://webcast.broadcastnewsroom.com/articles/viewarticle.jsp?id=8658
> http://support.microsoft.com/default.aspx?scid=kb;en-us;307654
>
>


From: Anon on 23 May 2010 17:52
rc wrote:
> Hello group,
>
> Windows XP machine keeps restarting/rebooting itself. Occasionally it will
> perform disk check and then proceed to user login screen. At this point any
> attempt to login begets another restart. Usually the disk check runs ok but
> occassionally it will mention something close to: " The size of the
> \documents & settings\Dee\ntuser.dat.Log entry is not valid." Help. I
> don't know how to proceed. Thanks.
>
Try getting into safe mode (F8 early and often). If it doesn't reboot
from there, it will tell you something about what's happening, and also
you can look around to see what you can find.

If it does restart from safe mode, try to find a "Live" operating system
CD, either linux or Windows. If it reboots from that, it's hardware.
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