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The Elder Geek on Windows XP :
(Btw, they host zillions of info, tips & tricks, and also an Index to ease finding whatever info you might need :-)
...Microsoft officially
pulls the plug on support for Service Pack 1 and Service Pack 1a for Windows XP. If you're unsure what version of XP you're running, go to Start and right click the My Computer icon and select Properties. The version will be displayed in the System section of the property sheet.
If you want to continue receiving critical security updates and patches, update to SP2...