Maybe it's already installed. :-)
Computer -> Properties
Does it say Vista xxx SP1?
There are certain updates that must be installed successfully prior to SP1
even being offered.
Since you have updates set to "Manual", check the list of those available
for installation and install all that are other than Optional.
Check your Install History and verify that none are currently in a "Failed"
status for installation.
If you install any, reboot.
Now check for available updates. Hopefully SP1 is there.
If not it can be manually downloaded and installed.
(Backup recommended prior to installation.)
Should that fail (installing), you hopefully will be given a meaningful
error message. But, probably not.
"Owkmann" <firstname.lastname@example.org> wrote in message
> My laptop, running Vista, is set to "check for updates but let me choose
> whether to download and install them". I have still not downloaded, nor
> have been notified, about Service Pack 1. Should I be concerned?