Support for Windows Vista without any service packs installed ended on April 13, 2010. Even if you updated Windows Vista to SP1, it is time to install the SP2 update. Windows Vista SP2 includes support for new types of hardware and includes all of the updates that have been released since Windows Vista SP1. See How to Install Windows Vista SP2.
Support is ending for Windows XP SP2 and below on July 13th, 2010. There is, however, a solution for Windows XP users who are not in a position to upgrade to a new operating system. Windows XP SP3 includes all previously released updates and a small number of new updates. It won't significantly change the Windows XP experience. See
There is no SP3 for the 64-bit version of Windows XP. If you are 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.
Support is also ending for Windows 2000 on July 13th, 2010. I seldom see many people in the forums with Windows 2000 installed on their computers. The few I see are on old computers that have been lovingly maintained by their owner. As they are painfully aware, end of support is rapidly approaching for all versions of Windows 2000. When their Windows 2000 computers are replaced, they are certainly going to have an adjustment to the newest Operating System!
Update: The following resource was recently published by Microsoft, Migrating User Files from Windows 2000 to Windows 7
, described as follows:Clubhouse Tags: Clubhouse, Microsoft, Windows, Security, Updates, Vulnerabilities, Information, Service Pack,
The Windows User State Migration Tool (USMT) version 4.0 does not support migrating user state from Windows 2000 to Windows 7—a challenge for organizations wanting to refresh many computers running Windows 2000 while moving users’ files. This white paper and its companion scripts help overcome this challenge by providing a solution that preserves users’ files during deployment.