Exploring Windows 11 March 2026 Updates: New Features, Improvements, and Fixes

Microsoft has officially launched the March 2026 Patch Tuesday update for both Windows 11 and Windows 10. This update, known as Windows 11 KB5079473 (Build 26200.8037), introduces various enhancements, hinting at the company’s goal to refine the operating system further throughout 2026, as previously indicated.

While Patch Tuesday typically focuses on system security and stability, this month’s release brings notable functional enhancements to Windows 11 as well.

The improvements featured in this update include support for Emoji 16.0, a built-in Sysmon for enhanced security monitoring, a new taskbar-based network speed testing tool, updates to Quick Machine Recovery, and enhancements to Storage and File Explorer, as well as preparations for forthcoming Secure Boot certificate updates.

Overview of Windows 11 Build 26200.8037 for Versions 25H2 and 24H2

The Patch Tuesday update applies to both Windows 11 version 25H2 and version 24H2. The KB5079473 (Build 26200.8037) package encompasses new features alongside crucial security improvements, system fixes, and reliability enhancements.

Microsoft’s phased rollout strategy continues with this update, marking a gradual introduction of most new features while maintaining a standard rollout for critical security updates and fixes.

New Features Introduced in the March 2026 Update

The features from the March 2026 Patch Tuesday update will be released via Microsoft’s Controlled Feature Rollout (CFR) system; thus, users may not see every new feature immediately upon installation. If any of the listed features are absent right after the update, rest assured, this is expected.

Introducing Emoji 16.0 Support

Microsoft’s testing phase for Emoji 16 support has extended over the past eight months. The update now enables full Emoji 16 functionality within Windows 11 version 25H2 and 24H2.

While a partial rollout occurred in September 2025, where users could see but could not insert emojis via the Emoji panel, this update rectifies that limitation. Users can now input new emojis, such as Fingerprint, Leafless Tree, Root, and Shovel; however, flags remain unsupportive in the default Emoji tool.

Expanding Windows Backup Restore for Organizations

Having been in service for over a year, Windows Backup Restore caters more to consumers than corporate needs. The March 2026 update enhances this feature, allowing enterprises to restore individual settings and applications upon user sign-in, provided such features are enabled by the organization.

This functionality has been validated across PCs in Entra multi-user environments and extends to Cloud PCs.

Automatic Activation of Quick Machine Recovery

Recognizing past issues where updates led to system malfunctions, Microsoft introduced Quick Machine Recovery (QMR) to revert to a stable state post-update failure. Now, the default activation of QMR is extended to more hardware, simplifying recovery for Windows 11 Pro users.

Nonetheless, this feature won’t activate on devices managed by enterprises or certain endpoints.

Bing-Powered Internet Speed Test Added

Windows 11 now features a Bing-powered Internet Speed Test tool accessible via the taskbar. Following the installation of the March 2026 updates, users can locate the speed test option directly by right-clicking the internet icon in the taskbar.

Windows 11 internet speed test toggle — Image Courtesy: WindowsLatest.com

The necessity of redirecting users to Bing for this functionality has raised concerns, as users generally expect a native experience. However, it remains an effective alternative for checking internet speed quickly.

Sysmon Becomes an Integrated Feature

Sysmon, a service that provides comprehensive monitoring of system activity, is now a part of the Windows 11 default components. This tool aids in security audits and detection of malicious activities.

Previously available only via manual download, Sysmon is now embedded within the March 2026 Update but requires manual activation through Settings.

System Monitor (Sysmon) is now natively available in Windows.

Using WebP Images for Desktop Backgrounds

The update permits the use of WebP images as desktop backgrounds, offering a more lightweight option. You can easily set WebP images as wallpapers through the Settings app or by right-clicking an image file.

You can now set WEBP image as desktop background

RSAT Now Compatible with Windows 11 Arm64

In a move to enhance capabilities on Arm-powered PCs, Microsoft has enabled Remote Server Administration Tools (RSAT) support for Windows 11 Arm64 devices. This toolkit empowers IT managers to oversee Windows Server environments from their devices.

The suite includes tools like:

Active Directory Domain Services tools
Active Directory Certificate Services tools
DNS Server tools
DHCP Server tools
Server Manager
Group Policy Management tools

Administrators can install these features through Settings > System > Optional Features or from Control Panel > Programs > Turn Windows features on or off.

Minor Enhancements in Accounts and Camera Settings

The March update also introduces subtle updates, such as a “View my benefits” option in the account menu found in the Start menu, which aids in managing Microsoft account-related features.

Additionally, new pan and tilt controls for compatible cameras have been integrated into the Settings app, allowing for convenient adjustments directly within the interface.

Enhancements and Fixes From the March 2026 Update

The update encompasses a plethora of reliability and stability improvements, which will be gradually deployed across Windows 11. Key enhancements include:

Improved responsiveness of the Windows Update settings page, ensuring efficient load times when checking for updates.
Enhanced reliability in the sign-in experience on login and lock screens.
Boosted stability for Nearby Sharing when transferring large files.
Improvements for users with multiple monitors, stabilizing display mode switches.
Enhanced performance of the Windows printing service, reducing slowdowns during high-volume printing tasks.
Reliability fixes for File Explorer, including consistent opening of new windows.
Introduction of an “Extract all” option in File Explorer for easier file management.
Increased reliability for device detection in the Network tab of File Explorer.
Improvements to PC wake-from-sleep reliability, speeding up system resume times.
Refinements to the Storage Settings page, including a refreshed design for dialogs.
Interface consistency improvements across Windows 11 for a smoother user experience.

Quality Improvements Included in the Standard March 2026 Rollout

Preparation for Secure Boot Certificate Updates

A crucial change in this release is the groundwork for upcoming Secure Boot certificate updates, with many certificates set to expire starting June 2026. Without timely updates, affected devices may struggle with secure booting.

The March update equips systems to handle these certificate transitions, introducing key infrastructure changes. Some PCs may see a pending update termed “Secure Boot Allowed Key Exchange Key (KEK) Update” following this release.

Secure Boot Allowed Key Exchange Key (KEK) Update.

BitLocker Reliability Improvements

Additionally, the update rectifies a reliability issue affecting BitLocker. Previously, some users experienced unresponsiveness after inputting recovery keys; this has been addressed in the March Update, enhancing the encryption process’s reliability.

Background AI Component Updates

The March update also brings enhancements to several internal AI components that power numerous Windows features. The components have been updated to version 1.2602.1451.0. These improvements impact:

Image Search
Content Extraction
Semantic Analysis
Settings Model

While specific change details are not often publicly shared, these components enhance features like Windows Search and intelligent recommendations.

Service Stack Enhancements and Known Issues

Microsoft is also deploying a servicing stack update (SSU) labeled KB5077371. This SSU improves the reliability of the Windows Update infrastructure, ensuring users receive patches consistently.

Currently, there are no known issues reported related to the March 2026 update, indicating a promising rollout compared to previous updates.

Ongoing Rollout of New Start Menu and Battery Icons

Beyond the features and boosts included in the Patch Tuesday update, Microsoft shared ongoing transitions in Windows 11. The newly designed battery icon, aimed at enhancing clarity for users, is gradually reaching more devices.

The revamped Start menu is also expanding and refining its layout, following its initial rollout in late 2025.

Feature rich Start menu setup in Windows 11 after the new Start menu update — Feature-rich Start menu setup after the recent updates.

Important Alert on Upcoming Secure Boot Certificate Expiration

As part of the March update’s announcements, Microsoft issued a warning regarding Secure Boot certificate expiration, starting June 2026. If systems lack updated certificates by this date, they could face secure boot issues.

To avoid disruptions, individual users and organizations are encouraged to review the official guidance and ensure timely updates. The March update has already laid the groundwork for supporting this transition.

For the majority of users, the update process will proceed automatically through Windows Update as the new certificates are rolled out.

As is typical with Patch Tuesday releases, it is advisable to install the update as soon as it becomes available for your device. To check for updates, navigate to Settings > Windows Update > Check for updates.

Source & Images

Exploring Windows 11 March 2026 Updates: New Features, Improvements, and Fixes

Overview of Windows 11 Build 26200.8037 for Versions 25H2 and 24H2