February 10, 2026—KB5075999 (OS Build 14393.8868) (original) (raw)

Applies To

Windows Server 2016, all editions Win 10 Ent LTSB 2016

Version:

OS Build 14393.8868

Windows Secure Boot certificate expiration

Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past months. Devices that haven’t received the newer certificates will continue to start and operate normally, and standard Windows updates will continue to install. We will continue to install the newer certificates via Windows updates in the coming months.

You can check your PC status on the Windows Security app. If you are an IT administrator, follow the guidance on the Secure Boot Playbook for Windows clients and Windows Server.

Summary

This article lists the security issues and quality improvements included in this security update.

Applies to: Windows Server 2016

This security update includes fixes and improvements that are a part of the following update:

• January 13, 2026—KB5073722 (OS Build 14393.8782)

The following is a summary of the issues that this update addresses. The bold text within the brackets indicates the item or area of the change we are documenting.

• [Graphics] Fixed: A stability issue affecting certain graphics processing units (GPUs) configurations.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the new Security Update Guide website and the February 2026 Security Updates.

For more information about Windows 10, version 1607, see its update history page.

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types.

Known issues in this update

Microsoft is not currently aware of any issues with this update.

How to get this update

Before you install this update

To install updates released on or after January 14, 2025, we recommend you first install the latest Servicing Stack Update (SSU). If your device or offline image does not have the latest SSU installed, you might not be able to install this update.

Caution Until you install the SSU, this update might not be offered to your device. To reduce your security risk, install the SSU as soon as possible.

• If you use Windows Update, the latest SSU (KB5075902) will be offered to you automatically. If the latest SSU is not installed, you might not be able to install this update.
• If you use Windows Update for Business, the latest SSU (KB5075902) will be offered to you automatically. If the latest SSU is not installed, you might not be able to install this update.
• If you use the Update Catalog, we recommend you download and install the latest SSU (KB5075902). If the latest SSU is not installed, you might not be able to install this update.
• If you are a Windows Server Update Services (WSUS) administrator, you must approve SSU KB5075902 and this update KB5075999.

For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Install this update

To install this update, use one of the following Windows and Microsoft release channels.

Available	Next Step
	This update will be downloaded and installed automatically from Windows Update.

File information

A list of the files that are included in this update are provided in a CSV (Comma delimited) (*.csv) file. The file can be opened in a text editor such as Notepad or in Microsoft Excel.

Download the file information for this cumulative update KB5075999 now.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.