Read the article
http://blogs.zdnet.com/microsoft/?p=1282
Why are some Windows Vista users who have Windows Update turned on not able
to see or obtain SP1, even though Microsoft made that code available on
March 18?
The answer to that thorny question and a few more (though not all) of the
latest specifics regarding Vista availability are on the Vista Team blog in
a new posting by Program Manager Nick White.
"qnguyen" <> wrote in message
news:371469FA-B90C-45D6-AA00-...
> Hi,
> I run windows update and there is no sign that sp1 available. I have link
> to download sp1 but it says that better to download from windows update.
> Should I go download and install it or wait for it available in windows
> update.
> Thanks