Here's some explanation of the forced reboot:
http://blogs.zdnet.com/Berlind/?p=733&tag=nl.e539
"Swingman" <> wrote in message
news:47DF21F3-6AB6-4C48-8527-...
Noted with the update that was snatched early this AM to my laptop ... if
you're running a new Vista installation you might want to double check your
default "Windows Update" settings to insure that you don't get rudely dumped
in the midst of a critical task when Vista decides to update ... by default
you will have no choice/warning should this happen while you're in the midst
of online banking/whatever.
DAMHIKT
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Last update: 6/1/07
KarlC@ (the obvious)