End of Support Dates for Windows Vista RTM, Windows XP SP2, and Windows 2000
As announced in 2008, support for Windows XP Service Pack 2 (SP2) and Windows 2000 will end on July 13, 2010. Support for Windows Vista Release to Manufacturing (RTM) will end on April 13, 2010. To help ensure your Windows Vista PCs stay secure and up to date, make sure they are running Windows Vista Service Pack 1 (SP1) or SP2. If you are running Windows XP, stay more secure by moving to Windows XP Service Pack 3 (SP3) or migrating to Windows 7. If you are running Windows 2000, we recommend that you move to Windows 7 as no additional support or updates will be offered for the Windows 2000 operating system.
Visit the End of Support Center for more details.