Windows Vista Service Pack 1 is available today through Windows Update.
Here’s the announcement of the general release of SP1, and here’s a technical note about a handful of reasons that might account for SP1 not being displayed to you on the Windows Update page. Generally that’s because another update has to be installed first.
If you’re running Windows Vista, you should install Service Pack 1 at a convenient time. In about a month, it will be offered through the Automatic Updates system and your computer will become more insistent about it. Here are a few more details about what to expect from SP1.
A couple of things to know about the installation.