New Windows 11 25H2 February 2026 Update – New Features in the Main Release (Build 26200.7840 or KB5077181)

In this article, we will talk about the latest Windows 11 Update for the 25H2 Main Release, which is the Build 26200.7840 or KB5077181.

For those of you who are not familiar with how Windows 11 Updates for the Main Release work, I will explain it to you in the following lines.

Every month Windows 11 has a B and a C Release for Windows 11. Usually, the B Release is launched on the second Tuesday of the month and contains all the features that were tested in the previous month’s C Release.

Microsoft is also announcing that starting with the January 2026 security update, Windows Server 2025 will have its own KB identifiers and build numbers. This change applies only to Windows Server 2025. It doesn’t change how you get or manage updates for Windows 11, version 24H2 or Windows 11, version 25H2.

New Improvements in this Update

• [Gaming] Fixed: This update addresses an issue that determines device eligibility for the full-screen gaming experience.
• [Networking] Fixed: This update addresses an issue that prevented some devices from connecting to certain WPA3‑Personal Wi‑Fi networks. The issue might occur after you install KB5074105.
• [Secure Boot] With this update, Windows quality updates include a broad set of targeting data that identifies devices and their ability to receive new Secure Boot certificates. Devices will receive the new certificates only after they show sufficient successful update signals, which helps ensures a safe and phased rollout.

For an in-depth list of other features and fixes that are rolling out, you can check this article.

Windows 11 Servicing Stack Update – 26100.7839

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. 

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.