Microsoft’s official lifecycle clock stopped on October 14, 2025, and with it the predictable stream of security patches that kept Windows 10 resilient against newly discovered kernel, driver and platform exploits — a change that security experts warn will materially increase cyber risk for millions of home users, schools, small businesses and parts of critical infrastructure unless decisive steps are taken now.
Background / Overview
Windows 10 launched in 2015 and, until October 14, 2025...