Really there’s very little in here to write home about. But SP1 for Windows 7 is unlike any previous service pack in one significant way: it’s almost a non-event. Usually, I advise people to wait a while before installing a service pack, just in case the service pack delivers its own set of problems. This week, Microsoft rolled out Service Pack 1 (SP1) for Windows 7.Ī service pack is like a giant first-aid kit for an operating system: Microsoft rolls up hundreds of bug fixes, patches and plugs for security holes into a single package, tosses in some new features, and delivers it in a multi-megabyte update.