Also, keep all your original Windows and program installation CDs in a safe place. Look at it this way: Any file you cannot afford to lose (what will take too long to re-create or is unique and cannot be re-created), should be located on two separate physical media, such as on two hard drives, or a hard drive and a CD.
Windows® XP Service Pack 3 (SP3) includes all previously released updates for the operating system.
* If a problem occurs any time after starting the installation, contact Microsoft for free technical support Service Pack 3 will install any missing critical updates issued prior to May 2008.
The new features improve security and should not result in noticeable changes in functionality.
This download is the self-extracting executable, which contains the update package for Windows XP Service Pack 3.
This final build of Windows XP Service Pack 3 includes all the previously released updates for the operating system from Windows XP Service Pack 3 RC1 going forwards.