Quick start: Windows Vista service packs

What's a service pack?

A service pack is a Windows update that combines new security and performance updates with previously released updates. Installing a service pack helps make sure you've got all the updates your PC needs to help make it more reliable, run more smoothly, and even more enjoyable to use. Think of it as a free all-in-one tune up for your PC.

There are two service packs for Windows Vista. Service Pack 1 (SP1) was released in April 2008, and might already be installed on your PC (to find out, click on the Start button and enter "winver" in the search box). Service Pack 2 (SP2) was released in May 2009 and contains all the updates we've released since SP1 plus support for new types of hardware and emerging hardware standards. You should install both Service Packs, and you need to install SP1 before SP2.

Updating your Windows Vista–based PC

Want SP2 right now? You can get the download here. Better yet, turn on Automatic Updates, and you’ll get the latest updates and service packs right away. Just keep an eye on the lower right corner of your screen for the update alert.

How to turn on automatic updates

Click on the alert to start the installation, which will take approximately one hour.

Upgrading from Windows XP

You may be able to upgrade a PC running Windows XP to Windows Vista with SP2. Use the Windows Vista Upgrade Advisor to see if your PC can run Windows Vista. You can get Windows Vista with SP2 from your local retailer.

Get Windows Vista Upgrade Advisor

Free help with service packs

If you have problems installing a service pack, Microsoft is here to help, free of charge. Microsoft provides free support covering any issue you have with installing service packs. For more information please visit the Windows Vista Service Pack support site.

Windows Vista Service Pack installation support