XP is also configured(by default) to update at 3.00am.

"melocotone" wrote:
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> 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.
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