The original announcement on MMPC http://blogs.technet.com/b/mmpc/archive/2014/01/15/microsoft-antimalware-support-for-windows-xp.aspx Anyway, for those still using XP and require anti-malware support (3rd-party vendors): https://www.av-test.org/en/news/new...e-products-will-continue-to-protect-xp-after/