Support (including new security updates) ends July 13, 2010 for Windows XP Service Pack 2 (SP2), Windows 2000 Server and Windows 2000 Professional. Migration to the latest OS or installation of the most current service pack is recommended. Check out your resources and options for end users/consumers and for IT Professionals.
NOTE: There is no Service Pack 3 for the 64-bit version of Windows XP. If you are running the 64-bit version of Windows XP with Service Pack 2, you are on the latest service pack and will continue to be eligible for support and receive updates until April 8, 2014. To find out if you are running the 64-bit version of Windows XP, right-click My Computer, then click Properties. If you do not see "64-bit" listed, then you are running the 32-bit version and you need to install Service Pack 3 . If "64-bit" is listed under System, then you are running the 64-bit version.
Customers running an unsupported version of Windows or service pack will not be eligible for any of our support options. Updates, including security updates released with bulletins from the Microsoft Security Response Centre, will be reviewed and built for the supported versions and service packs only. The most current service packs are available to organisations, and they are easily deployed via Windows Update, Windows Server Update Services/Microsoft System Centre, and the Microsoft Download Centre. To better understand the Microsoft Support Lifecycle Policy and your support options visit the Microsoft Support Lifecycle page.