KB5077181: Windows 11 Cumulative Security Update - February 10, 2026 (OS Builds 26200.7840 and 26100.7840)
February 2026 cumulative security update for Windows 11 versions 25H2 and 24H2, delivering OS builds 26200.7840 and 26100.7840 with security fixes and quality improvements.
Summary
KB5077181 is the February 2026 cumulative security update for Windows 11 versions 25H2 and 24H2, releasing on February 10, 2026. It delivers OS builds 26200.7840 and 26100.7840, incorporating security fixes, quality improvements, and non-security updates carried forward from the January optional preview release. Source: Microsoft Support
Highlights
- A fix for device eligibility determination for the full-screen gaming experience.
- A fix for devices unable to connect to certain WPA3-Personal Wi-Fi networks after installing KB5074105.
- Broad Secure Boot certificate targeting data is now included in Windows quality updates, enabling a phased rollout of new certificates to eligible devices.
Improvements and fixes
This update carries forward fixes and improvements from KB5074109 (released January 13, 2026), KB5077744 (released January 17, 2026), and KB5078127 (released January 24, 2026). Key changes include:
- Gaming: Resolves an issue affecting how a device's eligibility for the full-screen gaming experience is determined.
- Networking: Fixes a problem that prevented certain devices from connecting to WPA3-Personal Wi-Fi networks, which could occur after installing KB5074105.
- Secure Boot: Adds broad targeting data to Windows quality updates so that devices can be assessed for readiness to receive new Secure Boot certificates. New certificates are delivered only after sufficient successful update signals are confirmed, supporting a safe and phased rollout.
- AI components: Updates several AI components to version 1.2601.1268.0, including Image Search, Content Extraction, Semantic Analysis, and Settings Model. These components apply only to Windows Copilot+ PCs and will not install on standard Windows PCs or Windows Server.
- Servicing stack: Includes servicing stack update KB5077869 (version 26100.7839), which improves the reliability of the component responsible for installing Windows updates.
Known issues
Microsoft lists no known issues for this update at the time of writing.
How to get this update
The SSU for this operating system is combined with the latest cumulative update (LCU), so no separate SSU installation step is required before applying KB5077181.
Windows Update and Microsoft Update: The update downloads and installs automatically.
Windows Update for Business: Deploys automatically in line with configured policies.
Microsoft Update Catalog: Standalone packages are available. Because this KB contains multiple MSU files that must be installed in a specific order, Microsoft provides two methods:
- Method 1 - Install all MSU files together: Download all MSU files into a single folder and use DISM (
/Add-Package /PackagePath) or theAdd-WindowsPackagePowerShell cmdlet, pointing at the main KB5077181 MSU. DISM will locate and install any prerequisite MSU files automatically. - Method 2 - Install each MSU individually, in order: First install
windows11.0-kb5043080-x64, then installwindows11.0-kb5077181-x64, using either DISM or Windows Update Standalone Installer.
Windows Server Update Services (WSUS): The update syncs automatically when Products is set to Windows 11 and Classification is set to Security Updates.
Removal note: To remove only the LCU, use DISM /online /remove-package with the LCU package name. Running wusa.exe /uninstall against the combined package will not work because it contains the SSU, which cannot be removed after installation.
Frequently asked questions
Does this update affect Secure Boot certificate behavior on managed enterprise devices?
Microsoft notes that Secure Boot certificates on most Windows devices are set to expire starting in June 2026. This update includes targeting data to identify devices ready for new certificates. IT admins managing enterprise environments should review the Secure Boot Playbook for Windows clients and Windows Server for specific guidance.
Are the AI component updates included here applicable to all Windows 11 devices?
No. Although the AI component updates ship inside this cumulative update package, they only install on Windows Copilot+ PCs. Standard Windows PCs and Windows Server machines will not receive the AI component payload even if they install this update.
Is a separate servicing stack update required before installing KB5077181?
No separate SSU download is needed. Microsoft combines the latest servicing stack update (KB5077869, version 26100.7839) with the LCU in a single package, so both components install together in one operation.
How should sysadmins handle Catalog deployment when multiple MSU files are required?
When deploying via the Microsoft Update Catalog, use DISM Method 1 by placing all downloaded MSU files in one folder and pointing DISM at the primary KB5077181 MSU. DISM will automatically detect and install prerequisite packages from that folder, reducing the risk of ordering errors in scripted deployments.
