Better Safe Than Sorry

Day One of Windows Genuine Advantage Programme

That's right boys and girls Bill is no longer going to update your "non-genuine versions" of Windows XP.
They will continue to update pirated versions as long they are authenticated. This will ensure that those copies out there will not be copied.
Users need to visit the Microsoft Download Centre, Windows Update or Microsoft Update where they will be required to download an ActiveX control. This will check the authenticity of their Windows install and, if validated, allow for future verification.
Visit the Windows Genuine Advantage Programme.