Windows 10 users who aren't upgrading to Windows 11 need to enroll in a Microsoft's Extended Security Updates program to receive critical security updates.

Although support for Windows 10 will not end in October 2025 after all, Microsoft’s additional grace period extends its life ...

TL;DR: Windows 11 version 23H2 will reach the end of support on November 11, 2025, which means no more security fixes. So at that stage, holdouts from 24H2 will be forced to upgrade - though you ...