Windows 11 KB5089573: Overview and Key Features

Windows 11 KB5089573 is a major update that upgrades the OS to Build 26200.8524, bringing several new features like the Low Latency Profile for improved performance. This update is accessible via Windows Update, and Microsoft has also provided direct download links for the KB5089573 offline installers (.msu) through the Microsoft Update Catalog.

Availability and Installation

The May 2026 optional update is listed as 2026-05 Preview Update (KB5089573) (26200.8524) under Settings > Windows Update. It won’t download automatically unless you click the “Download & install” button.

This update is marked as a “preview” since it includes changes planned for the next Patch Tuesday (June 9, 2026). During testing, it was noted that enabling the “Get the latest updates as soon as they’re available” toggle may result in automatic installation and even a system reboot when you’re away from your PC. Otherwise, preview updates generally require manual installation and are as reliable as the monthly Patch Tuesday updates.

Download Links for Windows 11 KB5089573

Direct download links for Windows 11 KB5089573 (.msu offline installer) are available through the Microsoft Update Catalog. While the Update Catalog is unnecessary if Windows Update is working properly, it can be useful for troubleshooting installation errors or updating multiple PCs at once.

The May 2026 update is sizable, with the Build 26200.8524 installer weighing approximately 5.3GB for Intel and AMD PCs.

Windows Updates are increasing in size due to bundled AI models designed to support all types of hardware, including systems without an NPU chip. A detailed analysis of this trend can be found on Windows Latest.

What’s New in Windows 11 Build 26200.8524 (25H2) / Build 26100.8524 (24H2)?

New features in Windows 11 KB5089573 are rolling out in phases, so they may not be immediately visible after installation.

Low Latency Profile

The update introduces the Low Latency Profile, a CPU feature that boosts responsiveness by temporarily running the CPU at higher frequencies. This results in better performance, particularly when opening the Start menu or launching apps.

Testing has shown that the Low Latency Profile delivers a short performance boost lasting 1 to 3 seconds, enhancing UI responsiveness, especially on lower-end devices. While some users question this approach, similar CPU-boosting techniques are employed by macOS and Linux to enhance performance without keeping the CPU at maximum speed continuously.

Note that the Low Latency Profile for app performance is not included in this update and is scheduled for a future release.

Shared Audio Over Bluetooth

Another key feature is the shared audio functionality, which lets two users listen to the same audio on separate Bluetooth devices simultaneously. This feature is part of Windows 11 KB5083631 and requires hardware with Bluetooth LE support.

To check Bluetooth LE support, go to Settings > System > Sound > [Your Bluetooth Device] > Output settings. Ensure the “Use LE Audio when available” toggle is enabled under Bluetooth & Devices > Devices, followed by a system reboot.

Once set up, the shared audio button can be found in Quick Settings, listing compatible Bluetooth devices. Volume for each device can be adjusted independently in the shared audio panel.

Multi-App Camera Support

Windows 11 KB5083631 resolves the long-standing issue of camera conflicts by enabling multi-app camera usage. Users will no longer face the “Close other apps to use the camera” error. Additionally, a new basic camera mode has been introduced to help troubleshoot issues like stability problems or undetected cameras.

Magnifier and Accessibility Enhancements

The update enhances the Magnifier tool by improving compatibility with screen readers. Screen readers can now announce actions like zooming in/out and interacting with controls such as color inversion. Additionally, magnification of protected content is now supported if permitted.

Task Manager Updates

Task Manager has been updated with new columns, like “NPU engine”, to provide better insights into NPU usage. These updates are available across the Processes, Users, and Details tabs.

Start Menu Personalization

Microsoft continues to refine the Start menu, adding new customization options, including Small and Larger layouts.

Conclusion

Windows 11 KB5089573 and KB5083631 deliver significant updates that enhance performance, usability, and accessibility. From the innovative Low Latency Profile to shared Bluetooth audio and multi-app camera support, these updates aim to improve the overall Windows experience across diverse hardware configurations.