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February 10, 2026—KB5077181 (OS Builds 26200. 7840 and 26100. 7840 . . . Microsoft Store apps updates Change log Improvements This security update contains fixes and quality improvements from KB5074109 (released January 13, 2026) KB5077744 (released January 17, 2026), and KB5078127 (released January 24, 2026) The following summary outlines key issues addressed by this update Also, included are available new features
What’s New in Microsoft 365 Copilot | February 2026 | Microsoft . . . Welcome to the February 2026 edition of What's New in Microsoft 365 Copilot! Every month, we highlight new features and enhancements to keep Microsoft 365 admins up to date with Copilot features that help your users be more productive and efficient in the apps they use every day
January 13, 2026—KB5074109 (OS Builds 26200. 7623 and 26100. 7623 . . . This cumulative update for Windows 11, version 25H2 and 24H2 (KB5074109), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained