Hi,
Is there a stop error?
Have you checked the system logs in the event viewer?
If is shutting down with no messages, then it is being initiated by the
system hardware, likely in response to an overheating condition. It could be
that a fan or its control is faulty, or that the intake/exhaust vents are
being blocked. Most hardware will do this now to prevent damage to the
system, and it won't get better until the problem is corrected by replacing
the faulty unit or ensuring proper heat dissemination.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"TinWV" <> wrote in message
news:761B21ED-3D53-430E-B1C8-...
> I'm running Vista Premium on a Gateway MT6451 notebook.
>
> My computer continues to shutdown unexpectedly for no apparent reason. It
> does not restart automatically. I can restart it, usually with no problem,
> but this is keeping me from accomplishing anything. I have to constantly
> save
> files, etc to avoid losing them. Yesterday this happened about 7 times.
> The
> frequency seems to be increasing.
>
> This has happened when the only application I had open was Mozilla
> Firefox.
> I've used the reliability monitor and it lists several disruptive
> shutdowns.
>
> The only other symptom is my HP printer. When I move my laptop, I unplug
> the
> printer USB. When I plug it back it, it has to completely reload drivers,
> etc. I have deleted the printer from my system to see if it's the cause,
> but
> I can't keep it that way!
>
> I've also used the Memory Diagnostic tool, which is supposed to check
> memory
> and restart the computer. It did not restart the computer when I ran out,
> so
> I don't know if it actually "did" anything.
>
> I ran Checkdisk and it reported my problems.
>
> I've run McAfee and there are no viruses.
>
> How do I obtain diagnostics to determine the problem and where do I find
> error logs, etc? Please speak in layman's terms and pretend I'm clueless.
> I don't know where to go from here. I've searched the Microsoft Knowledge
> base, but found nothing that seems to apply.