January 13, 2026—KB5073722 (OS Build 14393.8783)
Applies To
Windows Server 2016, all editionsWin 10 Ent LTSB 2016
Release Date:
1/13/2026
Version:
OS Build 14393.8783
Windows Secure Boot certificate expiration
Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates.
Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.
Support for Windows Server 2016 will end in January 2027
After January 12, 2027, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows Server 2016. We recommend that you upgrade to a later version of Windows Server.
| | | | --- | --- | | Change date | Change description | | January 17, 2026 | - Removed the known issue "Connection and authentication failures in Azure Virtual Desktop and Windows 365" as it was determined that the issue...
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