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What does Windows XP end of support mean?
Support for Windows XP ended on April 8, 2014. Windows XP users no longer receive new security updates, non-security hotfixes, free or paid assisted support options, or online technical content updates from Microsoft.
For more information on what this means, and what you can do, go to the Windows XP website. You can also see answers to top questions about how this affects Microsoft Security Essentials updates.
You can read more at these links: