Julian, you are right that once the cause is identified it is very easy to
take care of.

The problem with many issues such as this is that it is very hard to
diagnose.
Windows's help offers very limited help for these problems. I found the
discussion groups such as this one, blogs are the places to find tips.

"Julian" wrote:
[color=blue]
>
>
> "Hong" <Hong@discussions.microsoft.com> wrote in message
> news:A6FD59DB-2F6F-45D7-98EF-3B83057C3E6F@microsoft.com...[color=green]
> > Windows Update, that is the culprit!!!
> >
> > Thank you so much, Steve. Without your tip, I don't know, how many more
> > hours I would spend on it.
> >
> > I went to Change settings of Windows Update last night and changed Install
> > new updates: at 4:00AM from 3:00AM. The event log shows this morning my
> > computer woke up 4:00 instead of 3:00. You may ask why there are updates
> > for installation every day. This is another problem that I have. One
> > update
> > for SQL server ((KB934458) has been installed SUCCESSFULLY every day since
> > 7/21.
> >
> > Michasel,
> >
> > I did check Task Scheduler with Show Hidder Tasks. That was my first
> > suspect. I made sure none of them has the option Wake the computer to run
> > this task checked. Unfortunately Windows Update is not a normal scheduled
> > task and it has the privilege to wake up the computer.[/color]
>
> You can prevent that easily
>
> Control Panel > Windows Update > Change Settings >
> Select "Download updates but let me choose whether to install them."
>
> Then your system will let you know updates have arrived
> but give you the choice to install them at your convenience.
>
>
>
>[/color]