Win Update KB5089570 Windows 11 Cumulative Update Preview build 28000.2179 (26H1) - May 26

UPDATE 6/09:

May 26, 2026 - KB5089570 (OS Build 28000.2179) Preview​

This cumulative update for Windows 11, version 26H1 (KB5083806), includes production-quality improvements.
Visit the Windows release health dashboard for the latest status on this release.

Highlights​

This update is available through two release phases: gradual rollout and normal rollout. A gradual rollout delivers an update in phases, so features reach devices over time instead of all at once, meaning availability varies by device. A normal rollout is the broad release to all eligible devices at the same time, usually when it reaches general availability (GA).

Gradual rollout

The following summary outlines features from AI-powered Windows 11 PC experiences, along with improvements and fixes. The bold text within the brackets indicates the item or area of the change.

Windows 11 PC experiences​

This section highlights some new features and enhancements for Windows 11 PCs, including AI-powered capabilities, continuous innovation, and performance improvements.

• [Shared Audio] New! Shared Audio enables two people to listen to the same audio from a single Windows 11 PC at the same time. It uses Bluetooth® LE Audio broadcast technology to make sharing easy. For example, you can watch a movie while traveling or listen to music while studying together. To start sharing audio, open Quick settings from the taskbar, select Shared Audio, choose two supported, paired, and connected devices, and then select Start sharing. To learn more about Shared Audio, see Extending Bluetooth® LE Audio on Windows 11 with Shared Audio.
  
  
  

  Use Shared Audio with Two Bluetooth LE Audio Devices in Windows 11

  This tutorial will show you how to share and stop sharing output audio with two Bluetooth LE Audio devices on supported Windows 11 Copilot+ PC. Starting with Windows 11 build 26220.7051 (Dev and Beta), Microsoft is gradually rolling out shared audio (preview), a new experience built on...

  www.elevenforum.com
  

  Shared Bluetooth LE audio is rolling out for Windows 11 version 25H2 and 26H1

  Windows OS Platform Blog: Announcing shared audio for Bluetooth® LE Audio on Windows 11, bringing you closer when watching movies or listening to music with friends and family. I was on a traveling with a friend on a long flight when I asked them if they wanted to watch a movie with me on my...

  www.elevenforum.com
• [Gaming] New! Xbox mode is available on Windows 11 PCs, including laptops, desktops, and tablets. Inspired by the Xbox console experience, Xbox mode offers a streamlined, full‑screen interface that puts your games front and center while minimizing background distractions. Xbox mode is designed for those moments when you want to lean back, pick up a controller, and focus on the game. Enter Xbox mode from the Xbox app, Game Bar settings, or by pressing Windows logo key + F11. For more information, see Xbox Mode Begins Rolling Out to Players on Windows 11PCs Today.
  
  
  

  Enable or Disable Xbox Mode in Windows 11

  This tutorial will show you how to enable or disable Xbox mode for full screen gaming for your account on Windows 11. Starting with Windows 11 build 26100.8328 (24H2), build 26200.8328 (25H2), and build 28000.2179 (26H1), Xbox mode is now available on Windows 11 PCs, including laptops...

  www.elevenforum.com
  

  Enter and Exit Xbox Mode in Windows 11

  This tutorial will show you how to enter and exit Xbox mode for full screen gaming for your account on Windows 11. Starting with Windows 11 build 26100.8328 (24H2), build 26200.8328 (25H2), and build 28000.2179 (26H1), Xbox mode is now available on Windows 11 PCs, including laptops, desktops...

  www.elevenforum.com
• [File Explorer]
  • New! This update expands the list of archive formats that can be used in File Explorer to include uu, cpio, xar, and NuGet Packages (nupkg).
    
    
    

    ZIP (compress) Files and Folders in Windows 11

    This tutorial will show you how to ZIP files in Windows 11. Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed...

    www.elevenforum.com
  • With this update, View and Sort preferences are preserved in folders such as Downloads and Documents when apps launch File Explorer directly to those locations.
    
    
    

    Change Folder Layout View in Windows 11 File Explorer

    This tutorial will show you how to change the layout view of a folder in File Explorer for your account in Windows 11. In Windows 11, you can change the layout view of a folder in File Explorer to show all items in the folder with a extra large icons, large icons, medium icons, small icons...

    www.elevenforum.com
    

    Change Folder Group by View in Windows 11 File Explorer

    This tutorial will show you how to change the group by view of a folder in File Explorer for your account in Windows 11. In Windows 11, you can change the group by view of a folder in File Explorer to have all items in the folder grouped by the name, date, date modified, size, type, total size...

    www.elevenforum.com
    

    Change Folder Sort by View in Windows 11 File Explorer

    This tutorial will show you how to change the sort by view of a folder in File Explorer for your account in Windows 11. In Windows 11, you can change the sort by view of a folder in File Explorer to have all items in the folder sorted by the name, date, date modified, size, type, and more file...

    www.elevenforum.com
  • This update removes a white flash that could appear when opening This PC or while resizing the Details pane in dark mode.
  • This update improves the reliability of relevant explorer.exe processes so they stop after closing File Explorer windows.
• [Input]
  • New! You can feel haptic feedback effects on compatible input devices when performing certain actions, such as aligning objects in PowerPoint, snapping or resizing windows. These haptic signals can be turned on or off in Settings > Bluetooth & devices > Mouse, Touchpad, or Pen > Haptic signals. This experience is supported on Surface Slim Pen 2, ASUS Pen 3.0, and MSI Pen 2 with haptic feedback. Support for additional compatible devices, including select mice such as Logitech MX Master 4, might become available as hardware partners release updates.
    
    
    

    Enable or Disable Mouse Haptic Feedback in Windows 11

    This tutorial will show you how to turn on or off mouse haptic feedback for your account in Windows 11. Haptic feedback gives you increased control and precision through vibrations on your mouse device when you snap windows, align objects, and more. Starting with Windows 11 build 26100.8328...

    www.elevenforum.com
    

    Enable or Disable Touchpad Haptic Click Feedback in Windows 11

    This tutorial will show you how to turn on or off touchpad haptic click feedback for your account in Windows 11. If you have a Precision Touchpad, the haptic motors deliver tactile feedback that simulates the feeling of physical clicks or taps, despite the touchpad itself remaining stationary...

    www.elevenforum.com
  • New! Voice typing on the touch keyboard now looks simpler and more intuitive. The updated design removes the full‑screen overlay and shows voice typing animations directly on the dictation key, helping you stay focused without extra visual distractions.
    
    
    

    Use Voice Typing to Dictate Text in Windows 11

    This tutorial will show you how to use voice typing to dictate text with your voice in Windows 11. In Windows 11, dictation has been updated and renamed as voice typing. Like dictation, voice typing uses online speech recognition technologies to power its speech-to-text transcription service...

    www.elevenforum.com
  • New! The Arabic 101 Legacy keyboard layout is now available. You can add it when selecting a keyboard for Arabic under Time & Language > Language & Region. This option is for those who prefer the keyboard design used before recent changes with AltGr.
    
    
    

    Change Keyboard Layout in Windows 11

    This tutorial will show you how to change the keyboard layout for your account in Windows 11. In Windows, you can change your keyboard layout to type in another language or input method you want to use.. The language of your keyboard layout controls the characters that appear on your screen...

    www.elevenforum.com
  • This update improves the reliability of setting custom tools under Settings > Bluetooth & Devices > Wheel.
  • This update improves the persistence of Fluid Dictation setting in voice typing.
  • This update improves the reliability of keyboard navigation for emoji panels (Windows logo key + Period).
  • This update improves the reliability of typing when using the ADLaM keyboard.
• [Sharing] New! Drag Tray is now called Drop Tray. Its settings are now under Settings > System > Multitasking (previously Nearby sharing). Drop Tray uses a smaller peek view. This improvement helps prevent the Drop Tray from opening unintentionally and makes it easier to dismiss when you work near the top of the screen.
  
  
  

  Enable or Disable Drop Tray in Windows 11

  This tutorial will show you how to enable or disable the Drag/Drop Tray feature for your account in Windows 11. Starting with Windows 11 build 26100.4202 (24H2) and build 22631.5413 (23H2), sharing files in Windows is getting a lot easier and quicker with the Drag Tray feature. When you start...

  www.elevenforum.com
• [Introducing Agents on Taskbar] New! Windows is adding a new way to monitor your agents from the taskbar. This experience supports agents across first- and third-party apps, with Researcher in the Microsoft 365 Copilot app as the first adopter. When Researcher works on a report, Windows shows progress on the taskbar so you can check updates at a glance. Hover over the Microsoft 365 Copilot icon to see real-time progress. When the report is ready, Windows notifies you. Select the notification or the icon to return to the app and review and use the results.
  
  Developers can learn how to use this API with the Windows.UI.Shell.Tasks API.
• [Enterprise State Roaming (ESR)] New! This update adds the ability to manage ESR through Windows Backup for Organizations policies.This makes setup easier for IT administrators. To learn more, see Enterprise State Roaming.
• [Policy-Based Removal of Preinstalled Microsoft Apps] New! This update adds support for a dynamic app removal list to the “Remove Default Microsoft Store packages” policy for Windows Enterprise and Education. Administrators can remove additional MSIX/APPX-packaged apps by specifying their app package family names using Group Policy. The dynamic list is not currently available in Intune Settings Catalog. Validation must be performed using Group Policy or custom OMA-URI. For more information, see Policy-based in-box app removal.
  
  
  

  You can now dynamically remove apps from managed Windows 11 devices

  Windows IT Pro Blog: You can now use policy to remove select pre-installed Microsoft Store apps on devices running Windows 11, version 25H2 or version 24H2. We've also made a significant update to this policy: a dynamic app removal list. This feature lets you remove any preinstalled MSIX/APPX...

  www.elevenforum.com
• [Printing] New! This update adds a new icon to show where a printer supports Windows Protected Print Mode in print settings.
  
  
  

  Enable or Disable Windows Protected Print Mode in Windows 11

  This tutorial will show you how to enable or disable Windows protected print mode for all users in Windows 11. Starting with Windows 11 build 26016 (Canary) and build 26052.1100 (Dev), Microsoft has added Windows Protected Print Mode (WPP). Windows protected print mode lets your PC exclusively...

  www.elevenforum.com
  

  Check if Printer or Scanner Supports Windows Protected Print Mode

  This tutorial will show you how to check if a printer or scanner is compatible with Windows protected print mode (WPP) in Windows 11. Windows protected print mode exclusively uses the Windows modern print stack which provides additional print security benefits on PCs. Enabling Windows protected...

  www.elevenforum.com
• [Windows Driver Policy update] New! This update improves Windows security by changing how the Windows kernel trusts third‑party drivers. Default trust for cross‑signed drivers is removed, while drivers from the Windows Hardware Compatibility Program (WHCP) and an allow list of trusted legacy drivers remain allowed. Windows audits driver compatibility for at least 100 hours and three reboots before enabling enforcement. After enforcement, a small number of cross‑signed drivers might be blocked. For more information, see the Windows driver policy and the Advancing Windows driver security blog.
• [Enhanced security and performance for batch files] New! Administrators and Application Control for Business policy authors now have additional control over how the system processes batch files and Command Prompt (CMD) scripts. Starting with this release, administrators can enable a more secure processing mode for batch files. This mode prevents batch files from changing during execution.
  
  
  

  Enable or Disable Enhanced Security and Performance for Batch and CMD files in Windows 11

  This tutorial will show you how to turn on or off enhanced security and performance for batch and CMD files in Windows 11 Starting with Windows 11 build 26100.8328 (24H2), build 26200.8328 (25H2), and build 28000.2179 (26H1), Administrators and Application Control for Business policy authors...

  www.elevenforum.com
  
  To enable this setting, add the following value to the registry:
  
  Registry Key: HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor
  
  Value name: LockBatchFilesWhenInUse
  
  Type: DWORD
  
  Data to be set: 0 (disabled) or 1 (enabled)
  
  Policy authors can also enable this mode by using the LockBatchFilesWhenInUse application manifest control, as documented in the Application Control for Business manifest schema.
• [Microsoft Store] This update reduces unexpected errors when downloading and installing apps from the Microsoft Store, including errors 0x80070057, 0x80240008, and 0x80073d28.
• [Fonts] This update includes improvements to the Leelawadee UI font family for the Thai, Lao, Khmer, and Lontara scripts to enhance glyph sequencing, positioning, and rendering.
• Audio This update improves third-party driver compatibility with midisrv.exe.
• [Taskbar] This update improves the reliability of loading the system tray area of the taskbar.
• [Windows Hello] This update improves:
  • Reliability of Windows Hello Face.
  • Persistence of Windows Hello Fingerprint across upgrades.
• [Storage] This update improves:
  • Performance when viewing storage information for large volumes in Settings > System > Storage > Advanced Storage Settings > Disks & Volumes.
  • The size limit for formatting FAT32 volumes from the command line from 32GB to 2TB.
    
    
    

    Format Drive in Windows 11

    This tutorial will show you different ways to format a connected internal or external drive with an existing partition or volume already assigned a drive letter in Windows 10 and Windows 11. When you format a drive, it erases all existing data on the drive and applies a file system to allow the...

    www.elevenforum.com
• [Delivery Optimization] This update improves memory usage, reducing likelihood it will use an unexpectedly large amount of memory.
• [Display and graphics] This update improves persistence and availability of color profile options for supported monitors.
• [Kiosk mode] This update simplifies configuration for allowed packaged apps in kiosks when Microsoft Edge is one of the allowed apps.
• [General Performance] This update improves the performance of launching startup apps after starting your device (apps listed under Settings > Apps > Startup).
• [General Reliability] This update brings underlying changes to help improve explorer.exe reliability, including at sign‑in, when interacting with taskbar menus and Task View, when unpinning items from File Explorer’s Quick Access, and more.

Normal rollout

This non-security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

• [Secure Boot]
  • With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals, maintaining a controlled and phased rollout.
  • This update adds the LimitSecureBootRequiredServiceData Group Policy and mobile device management (MDM) setting under Computer Configuration > Administrative Templates > Windows Components > Secure Boot. When enabled, Windows limits the Secure Boot service data it sends by suppressing the event normally sent to Microsoft. This policy is included in the Windows Restricted Traffic Limited Functionality Baseline. For information about the policy, see Manage connections from Windows 10 and Windows 11 operating system components to Microsoft services.

If you installed earlier updates, your device downloads and installs only the new updates contained in this package.

AI Components​

This release updates the following AI components:

Windows 11 servicing stack update (KB5095676)- 28000.2172​

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.

Known issues in this update​

Microsoft is not currently aware of any issues with this update.

How to get this update​

Before you install this update

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates.

Install this update

To install this update, use one of the following Windows and Microsoft release channels.


If you want to remove this update

Before you decide to remove this update, see Understanding the risks: Why you should not uninstall security updates.

To remove this update after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.

Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File information

For a list of the files provided in this update, download the file information for cumulative update 5089570.

For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5095676) - version 28000.2172.





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