Windows Vista Service Pack 1 (SP1) will reach the end of support on July 12, 2011. From that date onward, Microsoft will no longer provide support or free security updates for Windows Vista Service Pack 1 (SP1). In order to stay secure and continue support you must upgrade to Service Pack 2 (SP2).
Products no longer supported
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.
There is no supported migration path from Windows 2000 to Windows 7 using the Windows User State Migration Tool (USMT). You will need to upgrade to Windows XP and then migrate to Windows 7 using USMT 4.0, a tool included with the Windows Automated Installation Kit (AIK). For more information on Windows 2000 and Windows 2000 Server End of Support visit Windows 2000 End of Support Solution Centre.
Updating your Windows XP, Windows Vista and Windows 2000 PCs before the end of mainstream support dates will ensure your PCs stay supported and receive security updates. The best way to be secure and supported is by migrating to Windows 7 .
Where can I go to learn more about Windows 7 for my business?
*NOTE: There is no Service Pack 3 for a 64-bit version of Windows XP. If you are running a 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 a 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 a 32-bit version and you need to install Service Pack 3. If "64-bit" is listed under System, then you are running a 64-bit version.)