Windows 11 KB5094126 Update: Key Features and Enhancements
The Windows 11 KB5094126 update is now available, bringing several new features such as Low Latency Profile, Shared Audio, and a Secure Boot Certificate update. Released as part of the June 2026 Patch Tuesday cycle, this mandatory update can be accessed via Windows Update. If automatic updates fail, users can download the .msu offline installer from the Microsoft Update Catalog.
Update Details
The KB5094126 update is rolling out under the name “2026-06 Security Update (KB5094126) (26200.8655)” for systems running version 25H2. For Windows 11 version 24H2, the update upgrades the OS to Build 26100.8655, but with no visible differences. The update downloads and installs automatically unless you’ve manually paused Windows Updates.
Microsoft is also testing a feature that allows users to pause updates indefinitely, but this improvement is not part of the current release and will arrive in a future update.
.NET Updates
In addition to the cumulative update, Microsoft has released .NET updates aimed at improving the security, performance, and overall experience of apps developed on the .NET framework.
How to Download and Install KB5094126
The recommended way to install the KB5094126 update is by navigating to Settings > Windows Update and checking for updates. Alternatively, users can download the update manually from the Microsoft Update Catalog. However, be mindful that updates downloaded this way can exceed 5GB in size, especially for systems with multiple PCs or when using offline installers.
What’s New in Windows 11 Build 26200.8655 (25H2) / Build 26100.8655 (24H2)?
Microsoft has introduced several new features and enhancements in this update. Below is a breakdown of the most notable changes:
1. Secure Boot Certificate Update
The Secure Boot certificate update is now available for supported PCs. While this feature has been gradually rolling out, most eligible PCs will receive the update automatically today. However, this update does not apply to PCs without Secure Boot, TPM, or necessary firmware support.
You can verify the status of Secure Boot by navigating to Windows Security > Device Security. Look for the Secure Boot section to confirm the current status.
- A green alert indicates that Secure Boot is active, and no further action is required.
- A yellow alert suggests that the automated Secure Boot certificate update is unsupported due to hardware or firmware limitations.
- A red alert indicates that required updates for Secure Boot cannot be installed, and users may need to update their BIOS/UEFI firmware to enable Secure Boot.
If your PC does not support Secure Boot updates, Windows will continue to run normally. However, having an updated Secure Boot certificate is strongly recommended for enhanced security.
2. Low Latency Profile
The Low Latency Profile feature, first introduced in May 2026 as an optional update, is now rolling out to all users. This feature temporarily boosts CPU frequency (1 to 3 seconds) to eliminate UI lag, such as when opening the Start menu, Notification Center, or Quick Settings. While the performance improvement is more noticeable on mid-range PCs, high-end PCs may see minimal impact.
Users can verify the feature by monitoring CPU frequency in Task Manager or third-party apps. Advanced users can enable the feature manually using the open-source tool ViveTool. Low Latency Profile is also being tested for apps to accelerate their launch times by reducing splash screen delays.
3. Shared Audio
The Shared Audio feature allows users to connect two Bluetooth devices simultaneously and share system audio between them. This functionality is made possible by Bluetooth LE Audio technology. To enable Shared Audio:
- Ensure your PC supports Bluetooth LE Audio.
- Navigate to Settings > Bluetooth & Devices > Devices and check for the toggle “Use LE Audio when available.”
- In Quick Settings, select Shared Audio, then choose two supported devices to start sharing audio wirelessly.
This feature is ideal for scenarios such as watching movies with family or friends on separate Bluetooth devices.
4. Multi-App Camera Support
Windows 11 now supports simultaneous camera access across multiple apps. Previously, only one app could use the camera at a time. To enable this feature:
- Go to Settings > Bluetooth & Devices > Camera.
- Turn on the toggle for “Allow multiple apps to use camera.”
Additionally, Microsoft has introduced a basic camera tool to help troubleshoot issues caused by drivers or hardware problems.
Known Issues
Microsoft has stated that there are no new known issues associated with the June 2026 update.
Conclusion
The Windows 11 KB5094126 update introduces significant improvements such as Secure Boot certificate updates, Low Latency Profile, Shared Audio, and multi-app camera support. Users are encouraged to install the update to take advantage of these new features and ensure their systems remain secure and up-to-date.
