From: Tommy on
If I understand correctly, Windows starts and then shuts itself down from
either start up or log on. Sounds like the shut down command has been linked
to the start up menu.

Could be those virus warnings you were talking about weren't fake after all.
Such a Windows malfunction is common with them.
From: SC Tom on

"bunger" <bunger(a)discussions.microsoft.com> wrote in message
news:DC839B23-3D86-412B-A4BA-B6425B18463B(a)microsoft.com...
>
> --
> Don''t touch that knob !!!!
>
>
> "SC Tom" wrote:
>
>>
>> "bunger" <bunger(a)discussions.microsoft.com> wrote in message
>> news:281A61F4-348C-41C1-B6CB-61E123737C7B(a)microsoft.com...
>> >I had been getting a fake "anti virus needs updating" message for a few
>> >days.
>> > I have McAfee thru my AT&T Yahoo account which I knew was fine, so I
>> > ran
>> > Spybot Search & Destroy.
>> > It found a bunch of things and I "Repaired" them. My machine seemed to
>> > run
>> > fine after that, no more fake antivirus alerts. I ran it for a few days
>> > with
>> > no problems but I hadn't shut it off completely until yesterday. When I
>> > went
>> > to turn it on yesterday that is when this problem started.
>> > I usually leave my machine on and only turn off and reboot about once a
>> > week.
>> > --
>> > Don''''t touch that knob !!!!
>> >
>> >
>> > "Leonard Grey" wrote:
>> >
>> >> Any clues at all about what might be the cause? Any recent changes to
>> >> your software or hardware, registry 'cleaners', other clean-up
>> >> procedures?
>> >>
>> >> Does Event Viewer provide any information?
>> >>
>> >> Without more details from you, it's anyone's guess.
>> >> ---
>> >> Leonard Grey
>> >> Errare humanum est
>> >>
>> >> bunger wrote:
>> >> > Running XP Home
>> >> > When I turn on the computer XP starts, get wallpaper with no icons,
>> >> > Welcome
>> >> > chime then a few seconds later the exit chime and it goes to the
>> >> > Welcome
>> >> > screen showing my Owner icon.
>> >> > Click on Owner icon and it starts installing preferences and I get
>> >> > the
>> >> > Welcome chime again, but it immediatly starts shutting down and I
>> >> > get
>> >> > the
>> >> > Exit chime, then the message in the lower corner that it is safe to
>> >> > shutoff.
>> >> >
>> >> > I have tried starting in Safe Mode and it does the same thing even
>> >> > though I
>> >> > also have the Admin icon at the Welcome screen, it acts the same way
>> >> > starting
>> >> > and immediatly shutting down using Admin or Owner icon.
>> >> >
>> >> > I have also tried starting from last known good configuaration and
>> >> > it
>> >> > still
>> >> > won't boot.
>> >> >
>> >> > XP Home was preloaded on this machine and I do not have a startup
>> >> > disc.
>> >> > I do have a copy of XP Pro if that might help.
>> >> >
>> >> > Thanks, John
>> >> .
>> >>
>>
>> Sounds like you may still be infected with something. Download, install,
>> and
>> run these two programs and see if they find anything:
>> MalwareBytes http://www.malwarebytes.org/mbam.php
>> and SuperAntiSpyware http://www.superantispyware.com/download.html
>>
>> You may have to do it in Safe Mode.
>> Let us know how things are after that, and if that took care of the
>> problem.
>> --
>> SC Tom

>I am unable to start XP even in safe mode

Try using another PC and creating a boot disk with the antivirus programs on
it. One that I recommend is Bart's PE http://www.nu2.nu/pebuilder/ .
--
SC Tom