Installing Windows Vista Service Pack 1

Windows Vista Service Pack 1 (SP1) is available at no charge for all users running a genuine version of Windows Vista. It contains previously released updates as well as enhancements in reliability, performance, compatibility, and support for new technology standards.

How do I know if I have Windows Vista SP1 installed?

Featured articles

What’s included in Windows Vista SP1

Find out what's changed in Windows Vista SP1 and what improvements you can expect.

Get your computer ready

Be sure you have enough available disk space, so you can easily upgrade to Windows Vista SP1.

Installation choices for Windows Vista SP1

Learn where to get Windows Vista SP1 and how to install it.

Facts for IT pros

Find release notes, the Windows Vista SP1 deployment guide, and other information.

Related links

What is Service Pack 1?
Windows Vista Solution Center
Uninstall Windows Vista SP1

Windows Vista Service Pack 1: Get it now

Note For 64-bit computers, download the 64-bit version of Windows Vista SP1. (Determine if you have a 32-bit or 64-bit version of Windows).