Even though Windows XP is coming to an end and no support will be available, there are going to be computers with XP for a long time yet to come and people will be trying to support them and keep them alive for a long time still. So in repairing or reinstalling Windows, you need to know what Service Pack (SP) to use on that computer with the license so it works properly with that license. So here’s a list of dates when each version of Windows XP Professional was released.
Windows XP was first released: 2001
SP1 release date: September 9, 2002
SP2 release date: August 2004
SP2b release date: April 2005
SP2c release date: Sept 2007
SP3 release date: April 21, 2008