The End of Support Calendar shows Microsoft Operating Systems end of support dates, whether they are the end of mainstream support that updates features and cosmetic changes, or extended support, which ends security fixes and all Microsoft technical support other than old web pages.
Windows 10 Security Updates end October 14, 2025
Event Information:
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Tue10Oct2017
Windows 10 "November Update" End of Life
Windows 10 version 1511 was known as "November Update" or build 10586.753, released November 12, 2015. Use the 'Winver' app to read the version number. This version of Windows no longer receives security updates, and should be updated to the current Windows 10 release, or taken offline.