February 24, 2026—KB5077241 (OS Builds 26200.7922 and 26100.7922) Preview

February 24, 2026—KB5077241 OS Builds 26200.7922 and 26100.7922 Preview ​​​​​This non-security update for Windows 11, version 25H2 and 24H2 KB5077241, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview...

February 24, 2026—KB5077239 (OS Build 28000.1643) Preview

February 24, 2026—KB5077239 OS Build 28000.1643 Preview ​​​​​This non-security update for Windows 11, version 26H1 KB5077239, 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...

October 21, 2021—KB5006746 (OS Build 22000.282) Preview

October 21, 2021—KB5006746 OS Build 22000.282 Preview For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11 original release, see its update history page.Note Follow @WindowsUpdate t...