makes a difference on what power off option you use.
sleep, hibernate, power off.
for sleep and hibernate there are log files in vista that might point to the culprit.
event logs, scheduled task logs, reliability and performance.
if you really POWERED OFF, check the bios to see if you have any of the WAKE ON options set.
"Vista Home Edition user" <Vista Home Edition
> wrote in message news

55D9D9D-DE66-446F-979A-...
I would be happy if anyone could give me some direction to a problem I have
with Windows Vista Basic.
Whenever, I have finished using my laptop with Vista Basic Home edition, I
shut it down completely. The next day, the laptop seems to power up
automatically without my assistance whatsoever.
Although I have the McAfee antivirus and carryout daily scanning which has
so far revealed nothing, I am concerned that this may be a problem with the
Vista software.
I do not have any other problem with this edition of Windows.
Please help.
Thanks in advance