Service Pack Center

Get the latest service pack for your version of Windows

A service pack (SP) is a Windows update, often combining previously released updates, that helps make Windows more reliable. Service packs can include security and performance improvements and support for new types of hardware. Make sure you install the latest service pack to help keep Windows up to date.
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Service packs for Windows XP, Windows Vista, and Windows 7 can be downloaded using Windows Update, an easy and free way to help keep your PC safer and running smoothly.
If you’re using Windows Update, service packs are downloaded, but aren’t installed automatically. You’ll need to install service packs manually. If you’re not using Windows Update, go to the Microsoft Update website to download service packs and then install them.