Windows 10 2016 build 14393.8422 (KB5065427) — release notes, known issues

Windows 10 · 2016 · Release · Security update (Patch Tuesday)

September 9, 2025—KB5065427 (OS Build 14393.8422)

All 2016 builds JSON — this build from the builds API

Known issues — reported on the forum

No problems reported on the forum for this build yet. Threads that name 14393.8422 or KB5065427 and describe a fault appear here automatically.

Coverage Windows 10 Reaches 300 Million Devices, Yet Windows 7 Keeps Dominating (2016) Sep 15, 2025 · Windows 10 2016 coverage from this build's release window
Coverage End of Support for Exchange 2016/2019: Migrate to Online or SE Now Sep 15, 2025 · Windows 10 2016 coverage from this build's release window
Coverage Office 2016/2019 End of Support Oct 14, 2025: Plan Migration to Microsoft 365 or LTSC 2024 Sep 16, 2025 · Windows 10 2016 coverage from this build's release window
Coverage Windows 10 22H2 and Office 2016/2019 End of Support: What to Do by Oct 14, 2025 Sep 18, 2025 · Windows 10 2016 coverage from this build's release window
Coverage Secure Windows 10 and Office 2016/2019 After Oct 2025: ESU LTSC and 0patch Sep 22, 2025 · Windows 10 2016 coverage from this build's release window
Coverage October 14 2025 End of Support for Office 2016 2019 and Windows 10 Sep 23, 2025 · Windows 10 2016 coverage from this build's release window
Coverage Office 2016 2019 End of Support 2025: Plan Microsoft 365 or LTSC 2024 Migration Sep 25, 2025 · Windows 10 2016 coverage from this build's release window
Fix Windows Server 2016 Not Getting Updates After August 2025: SSU Prereqs and WSUS Fix Sep 26, 2025 · Windows 10 2016 coverage from this build's release window

Issue Windows server essentials 2016 email service won't start 17 replies · Oct 20, 2025 · 2016 thread from the release window
Issue Windows Server Essentials 2016 Fails on Client Connector Install 3 replies · Nov 8, 2025 · 2016 thread from the release window