It is an important upgrade and should be installed on all Windows XP computers.The same is true for Service Pack 3 (SP3), which appeared on 2008-05-06.
Table of contents Read this first Can Service Pack 2 be installed on all XP installations?Ordering the service pack on a CD Preparing for installation Cannot install Windows XP with integrated Service Pack 2 Cannot install Service Pack 2 Boot or shutdown problems after Service Pack 2 installation The Service Pack 2 firewall Networking problems after installing Service Pack 2 NET SEND messages no longer received Computer does not work properly with Service Pack 2 Programs stop working or behave differently with Service Pack 2 Data Execution Prevention (DEP) Removing the uninstall information New and revised documentation Closing remarks, comments This page deals with problems caused or triggered by the installation of Service Pack 2 for Windows XP, and this information is also relevant to Service Pack 3.Please add questions and solutions below as comments.(Click on at the bottom of this page.) Service Pack 2 (SP2) appeared on 2004-08-06.List of fixes included in Windows XP Service Pack 2 Available disk space is used as follows (LIS = Local Install Source, the install files remain on disk; CAB = files of type .cab, cabinet).
A general advice, particularly after changing hardware, is to power everything down, including any routers, cable modems, switches, hubs, and the like, wait 10 seconds, then power them up again.Rebooting without powering down is not enough in some cases.Your problem may not be related to Service Pack 2 at all.If you have the firewall set up properly, but still have network problems, continue with the Windows Network Problem Solver page.Microsoft offers free technical telephone support for Service Pack 2.In the US call (800) 936-5700 and press 0 to get to an operator. This article does not generally cover installations running a third party software firewall.