KB5124163


Microsoft has released cumulative update KB5124163 (Build 28020.3112) for Windows 11, version 26H1, for Insiders in the Beta Channel. The update includes a small set of general improvements and fixes that make the system more stable. Among the individual fixes, one is listed in the release notes – in Hyper-V. The changes are rolling out gradually among Insiders, so they will not appear for everyone at the same time.

Installation via Windows Update: go to Settings > Windows Update and click Check for updates. A restart of the computer will be required to complete the installation.


Official announcement on the Microsoft website.

The last 10 Windows updates:

Update Build Version Windows Channel Date
KB5126657 19045.7807 22H2 (ESU) Windows 10 Stable 2026-10-13
KB5126653 22631.7652 23H2 Windows 11 Stable 2026-10-13
KB5127646 28000.3231 26H1 Windows 11 Stable 2026-10-13
KB5127648 26300.9711 26H2 Windows 11 Stable 2026-10-13
KB5127757 28120.3181 26H1 Windows 11 Experimental 2026-10-07
KB5127758 26220.9606 25H2 Windows 11 Beta 2026-10-07
KB5127754 28020.3172 26H1 Windows 11 Beta 2026-10-07
KB5127753 26340.9616 26H2 Windows 11 Experimental 2026-10-07
KB5124192 28120.3151 26H1 Windows 11 Experimental 2026-10-02
KB5124196 28020.3142 26H1 Windows 11 Beta 2026-10-02