You'll need to upgrade to SP3. In the not-so-distant future, you won't be
able receiving security updates/patches for your WinXP operating system.
How to remove Windows XP Service Pack 3 from your computerhttp://support.microsoft.com/kb/950249
Things to do prior downloadin/installing SP3.
1.Make an Image backup of the hard drive/Windows Partition before you
install SP3
2.Test your System Restore to see if it is working correctly.
3.Make absolutely sure the machine's free of any hijackware, Trojan, or
virus infections before installing SP3.
4.Run Disk Cleanup then run a Defrag session before installing SP3.
5.Disable all real-time protections (anti-virus; anti-spyware;third-party
firewall) before downloading/installing SP3.
6.Reboot twice after installing SP3.
7.Run another Defrag.
Detailed information:
Windows XP SP3 - Read all prerequisites for a successful installationhttp://msmvps.com/blogs/harrywaldron/archive/2008/05/08/windows-xp-sp...
Windows XP Service Pack 3 Overviewhttp://
www.microsoft.com/downloads/details.aspx?FamilyID=68c48dad-bc3...
Release Notes for Windows XP Service Pack 3http://support.microsoft.com/kb/936929http://download.microsoft.com/download/c/d/8/cd8cc719-7d5a-40d3-a802-...
http://www.microsoft.com/downloads/details.aspx?familyid=60807c3a-896...
The hard disk space requirements for Windows XP Service Pack 3http://support.microsoft.com/kb/947311
Some third-party programs may experience a change in functionality after
you install Windows XP Service Pack 3http://support.microsoft.com/kb/947309
Steps to take before you install Windows XP Service Pack 3http://support.microsoft.com/kb/950717
How to obtain the latest Windows XP service packhttp://support.microsoft.com/kb/322389
Create an Automated System Recovery set using Backuphttp://technet2.microsoft.com/windowsserver/en/library/a3516977-259b-...
How to Set up and Use Automated System Recovery in Windows XPhttp://technet.microsoft.com/en-us/library/bb456980.aspx
Installing Windows XP Service Pack 3 (SP3)
http://technet.microsoft.com/en-us/windowsxp/cc164204.aspx
Windows XP Service Pack 3 - ISO-9660 CD Image File:
http://www.microsoft.com/downloads/details.aspx?FamilyId=2FCDE6CE-B5F...
Windows XP Service Pack 3 Network Installation Package for IT Professionals
and Developers
(Single installations for PCs can use the same file)
http://www.microsoft.com/downloads/details.aspx?FamilyId=5B33B5A8-5E7...
Recover from a system failure using Automated System Recoveryhttp://technet2.microsoft.com/windowsserver/en/library/e96185f5-50b7-...
Error message when you try to install Windows XP Service Pack 3: "Access is
denied" or "Service Pack installation did not complete"
http://support.microsoft.com/kb/949377
If you don't like the answers provided here go to:
Use this forum for all issues related to Windows XP SP3http://forums.microsoft.com/TechNet/ShowForum.aspx?ForumID=2010&SiteI...
Good luck