KB5077181 is now available for Windows 11 24H2 and 25H2, consolidating earlier quality updates that addressed a mix of problems from gaming to networking. The patch fixes a device‑eligibility issue that prevented some laptops from running games in full‑screen mode, allowing gamers to experience titles without black bars or windowed compromises. It also resolves an incompatibility with WPA3‑Personal Wi‑Fi networks caused by a prior driver update (KB5074105), restoring seamless connectivity for devices that had been stuck on “connecting.” 

KB5077181: What It Fixes for Windows 11 24H2 and 25H2

The latest patch from Microsoft, KB5077181, bundles fixes that have been scattered across earlier releases this year. For users running the 24H2 or 25H2 editions of Windows 11, the update resolves a handful of frustrating glitches involving full‑screen gaming, WPA3 Wi‑Fi connectivity after certain driver installs, and a new strategy for rolling out Secure Boot certificates.

Gaming

After a round of early‑access builds, some gamers noticed that their laptops would refuse to launch games in true full‑screen mode, forcing them into windowed or borderless windows. This patch closes the door on that hiccup by correcting how Windows checks device eligibility for the immersive experience. A handful of users who had been stuck at a resolution mismatch finally found they could enjoy titles like Cyberpunk 2077 and Halo Infinite without the annoying black bars.

Networking

In February, a driver update (KB5074105) unintentionally broke the handshake with certain WPA3‑Personal Wi‑Fi networks. The result? Devices that had once connected effortlessly now sit on the “connecting” screen forever. KB5077181 patches the networking stack so that laptops and tablets again recognize those networks without a full reboot or driver roll‑back. One user who was in the middle of setting up a new router found that, after applying this update, her laptop happily joined the WPA3 network without any extra steps.

Secure Boot

The secure‑boot portion may look dry, but it matters for anyone who wants to keep their firmware safe while still getting new certificates. Microsoft now uses a broader set of “targeting data” to decide which devices receive updated Secure Boot certificates. Only machines that have shown consistent update success get the new keys, ensuring that the rollout stays smooth and that half‑broken firmware doesn’t suddenly become insecure.

How to Install

If you’re on 24H2 or 25H2, the simplest path is via Windows Update: open Settings => Update & Security => Windows Update =>  Check for updates. The patch should appear as a standard “Quality update” and install automatically during your next reboot. If you prefer command‑line, run powershell -Command "Get-WindowsUpdate" followed by the usual Install-WindowsUpdates sequence.

Bottom Line

KB5077181 isn’t just another headline on a tech blog; it stitches together several important fixes that keep gaming smooth, Wi‑Fi reliable, and secure‑boot progressive. If you’ve been seeing those frustrating black bars, struggling to join your router after a driver tweak, or simply want the latest security certificates without a messy rollout, this update is worth installing.

February 10, 2026—KB5077181 (OS Builds 26200.7840 and 26100.7840) - Microsoft Support

February 10, 2026—KB5077181 (OS Builds 26200.7840 and 26100.7840) - Microsoft Support