Microsoft's release table lists October 13, 2026 as the end of updates for Windows 11 24H2 Home and Pro; Enterprise and Education run to October 12, 2027. How to check your version, moving to 25H2 or 26H2, and why 26H1 is not an option.
Windows 10 Extended Security Updates for personal devices has been extended by a year to October 12, 2027. PCs already enrolled need no action, and unenrolled PCs can still enroll until then. The conditions and how to check, from Microsoft's official pages.
Google counts from first availability on the US Google Store. The Pixel 6, out in October 2021, gets five years, so October 2026 is the end. Samsung says only "up to 7 years" and publishes update lists instead of per-model end dates.