melocotone wrote:[color=blue]
> End June 2007 I bought a Sony Vaio laptop (TZ11MN) with Vista Business.
> I have lots of problems with Vista, specially with wireless connection
> (takes a lot of time before connecting, you see it connecting, disconnecting,
> connecting again...) and performance (it is frustrating !).
> Now I have discovered another (serious) problem: I noticed that the laptop
> was being waked automatically from hibernation state (not from sleep state,
> no..., from HYBERNATION state) in the middle of the night. Today I
> investigated (inspecting the event log) and found out that there were entries
> starting from 3:00:55 in the morning, and this for a several days in a row.
> ... As the mains was disconnected at night (I disconnect also my wireless at
> night) I got an almost empty battery in the morning, when I noticed that the
> laptop was on.
> I investigated the Task Scheduler for all tasks there, and saw no task with
> triggers to awake the laptop.
> Then I looked into Control Panel ->Windows Update and found to my surprise
> that Automatic Update was set for 3:00:00 every day ! Bingo ! It is very
> coincidental that those entries in the event log start around 3:00:55 in the
> morning and Automatic Update is set to run at 3:00:00 every day ! (I never
> set this myself, it was set from the installation).
>
> But what surprises me the most, is that Automatic Update (without any
> warning in the configuration) awakes the laptop (this is an assumption I will
> test tonight by changing automatic update to manual update) that is
> completely shut down. In hibernation stand a copy of the used memory is
> written to disk and the computer is shut down completely, no power usage
> whatsoever. It is completely unacceptable for any Vista component (a
> scheduled component or any part of the OS) to wake a computer that is in
> sleep stand (unless the user specifically has stipulated so) ! If you put
> your laptop in a closed bag and it is waked automatically the produced warmth
> cannot dissipate and the computer can be destroyed (plastics,
> electronics...). Actually I saw mention of such an event in the following
> blog: [url]http://jkontherun.blogs.com/jkontherun/2007/06/coffee_break_wa.html[/url].
>
> If I compare XP (installed in another laptop) with current Vista, I must say
> XP is a fantastic product ! No problems connecting to the same wireless
> device that is giving so much problems with Vista (a Linksys WRT54G), no
> problems with performance, (almost) no problems with hibernation.
>[/color]


Yes, this is another problem with Microsoft's "We have control"
philosophy, albeit an unintentional one.

I would advise that you change the time to one where the machine is
likely to be opened up and maybe on the charger. If you turn updates off
you will stop normal updates but not the "Stealth" updates that
Microsoft have begun to perform. Since Microsoft don't really want to
talk about these we have no idea what time they may take place, so we
just have to "Hope" they either occur when the machine is on or else
respect the time settings for ordinary updates.