KB5077179: This update addresses an issue where certain GPU

February 10, 2026—KB5077179 (OS Build 28000.1575)

Improvements
This security update contains fixes and quality improvements. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

• [Graphics] Fixed: This update addresses an issue where certain GPU configurations might recently have experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error.
• [.NET Framework 3.5] Starting with Windows 11 version 26H1, .NET Framework 3.5 is no longer a Windows Feature on Demand optional component. You must install .NET Framework 3.5 by using the standalone installer. For more information, see https://go.microsoft.com/fwlink/?linkid=2348700.
• [Networking] Fixed: This update addresses an issue that prevented some devices from connecting to certain WPA3‑Personal Wi‑Fi networks.

[OS Reliability]

• Fixed: This update addresses an issue where BitLocker Hardware Lab Kit (HLK) tests in the Windows Hardware Compatibility Program (WHCP) playlist were missing. The tests now appear as expected.
• Fixed: This update addresses an issue that could cause TrustedInstaller to stop responding and prevent Windows from starting.