If you're running Windows XP with Service Pack 2 (SP2) and you're not ready to upgrade to Windows 7, you should install Windows XP Service Pack 3 (SP3), a free update.

Windows XP SP3 includes all previously released updates and a small number of new updates. It won't significantly change the Windows XP experience.

* Note: There's no SP3 for the 64-bit version of Windows XP. If you’re running the 64-bit version of Windows XP with SP2, you have the latest service pack and will continue to be eligible for support and receive updates until April 8, 2014.