In this article, we will talk about the latest Windows 11 Update for the 26H1 Main Release, which is the Build 28000.1575 or KB5077179.
Microsoft has Released Windows 11 26H1, which is a New Version that Microsoft is using to test the New Platform for the upcoming Qualcomm Snapdragon X2 Devices and Nvidia N1X Processors.
Windows 11, version 26H1 will only be available on new devices that will be released to the market in early 2026 and it is not offered as an in-place update from Windows 11, version 24H2 or 25H2 on existing devices.
Devices running Windows 11, version 26H1 will continue receiving monthly updates for security, quality, and new features, the same as devices running Windows 11, versions 24H2 and 25H2.
Devices running Windows 11, version 26H1 will not be able to update to the next annual feature update in the second half of 2026. This is because Windows 11, version 26H1 is based on a different Windows core than Windows 11, versions 24H2 and 25H2, and the upcoming feature update. These devices will have a path to update in a future Windows release.
For more information about Windows 11 26H1, you can check this article from the Microsoft Website.
New Improvements in this Update
- [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.
New Features in the Initial 26H1 Release
- Semantic (AI) Search
- New Cloud File Toggle
- New FAT32 Partition Size
- .NET Framework 3.5 no longer available
- New Storage Settings UI
- Safe Mode with no Sysprep
- New Confirmation Dialogs for Partition Format/Delete in the Installation Setup
For more info about this Update, you can check this article from the Microsoft Blog.
For a more in-depth presentation of the New Update, you can watch the video below from the YouTube channel.
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