Win Update KB5095091 Windows 11 Cumulative Update Preview 28000.2340 (26H1) - June 23

This cumulative update for Windows 11, version 26H1 (KB5095091), includes production-quality improvements.

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​

• [Magnifier in Windows]
  • New! Magnifier now provides clearer and more consistent announcements when working with a screen reader. You’ll hear helpful announcements when you zoom in or out, switch views, turn color inversion on or off, or turn Magnifier on or off. This makes it easy to stay oriented while you work.
  • New! Magnifier now supports magnification of permitted protected content.
  • This update improves smoothness when moving Magnifier in lens mode.
    
    
    

    Change Magnifier View in Windows 11

    This tutorial will show you how to change Magnifier view for your account in Windows 11. Magnifier makes part or all of your screen bigger so you can see words and images better. You can change between the docked, full screen, and lens Magnifier views. When you turn on Magnifier, it will use...

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• [Task Manager]
  • New! Task Manager now offers improved visibility into NPU usage on PCs with an NPU. New optional NPU and NPU Engine columns are available on the Processes, Users, and Details pages, along with NPU Dedicated Memory and NPU Shared Memory optional columns on the Details page. Neural engines that are part of a GPU now appear on the Performance page, providing a more complete view of AI-related activity. A new optional Isolation column on the Processes and Details pages shows which apps are running in an AppContainer. You can add any of the new columns by right-clicking a column header in Task Manager and selecting them from the menu.
    
    
    

    See NPU Usage Details in Windows 11

    This tutorial will show you how to see NPU usage details in Windows 11. A NPU (Neural Processing Unit), or AI processor, is a specialized accelerator that handles artificial intelligence (AI) and machine learning (ML) tasks right on your PC instead of sending data to be processed in the cloud...

    www.elevenforum.com
  • This update improves CPU speed display on the Performance page of Task Manager for VMs, so it doesn’t show higher than unexpected numbers after resuming from hibernate.
• [Camera] New! Windows 11’s Multi-App Camera feature allows multiple applications to access your camera stream at the same time. Basic Camera mode in Windows 11 enables simplified camera functionality, useful for troubleshooting or improving stability when your camera is not working correctly. Enterprise admin can now set Multi-App Camera mode or Basic Camera mode through Group Policy, under Computer Configuration > Administrative Templates > Windows Components > Camera > Configure Camera Options.
  
  
  

  Enable or Disable Multiple Apps to Use Camera in Windows 11

  This tutorial will show you how to turn on or off allowing multiple apps to use camera at the same time for your account or all users in Windows 11. Starting with build 26100.8524 (24H2), build 26200.8524 (25H2), and build 28000.2333 (RP 26H1), Microsoft added a new Advanced camera options...

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  Enable or Disable Basic Camera Mode in Windows 11

  This tutorial will show you how to turn on or off camera basic mode for your account or all users in Windows 11. Starting with build 26100.8524 (24H2), build 26200.8524 (25H2), and build 28000.2333 (RP 26H1), Microsoft added a new Advanced camera options section on the Cameras page in Settings...

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• [Windows Setup] New! You can now choose a custom name for your user folder on the Device Name page during Windows setup. The updated experience makes it easier to select a custom name during setup only. If this step is skipped, Windows uses the default folder name and continues setup as usual. User folder names must follow standard Windows naming requirements.
  
  
  

  Clean Install Windows 11

  This tutorial will show you step by step on how to clean install Windows 11 at boot on your PC with or without an Internet connection and setup with a local account or Microsoft account. Windows 11 has all the power and security of Windows 10 with a redesigned and refreshed look. It also comes...

  www.elevenforum.com
• [File Explorer] Fixes an issue where the OneDrive shortcut in File Explorer stops working when File Explorer is run with administrative mode.
• [General Performance] This update accelerates app launch and core shell experiences such as Start menu, Search, and Action Center.
• [Personalization]This update improves:
  • Color selection accuracy when adjusting your accent color to match your wallpaper when the automatic accent color selection is enabled in Personalization settings.
  • Wallpaper persistence reliability across restarts and upgrades, including better support for large resolution wallpapers and other scenarios to prevent solid color wallpaper fallback.
• [Windows Hello]
  • This update optimizes the Windows Biometric service (WinBio) to help improve performance when your device resumes from Modern Standby.
  • This update reduces unexpected authentication blocks in Windows Hello Enhanced Sign in Security by resolving missing secure enrollment metadata.
  • This update improves sign in behavior on the lock screen and sign in screen. When Windows Hello face or fingerprint is set up and available, it is now the default sign-in method every time you sign in, even if you used a different method previously. If you need to use your Windows PIN instead and use it three times in a row, Windows will stay with PIN until you switch to another sign-in method.
• [Windows Search Box] Windows Search will now find and prioritize files with as few as two characters.
• [Storage]
  • The dialog box for creating a Dev Drive now supports specifying the size in gigabytes (GB) instead of only megabytes (MB). This option is also available when resizing volumes in Settings > System > Storage.
  • In Settings > System > Storage, you now see a User Account Control (UAC) prompt only when you choose to view temporary files, instead of immediately when opening the page.
• [USB]
  • This update improves reliability for displays attached to USB4 docks and hubs. These displays now light up more consistently, particularly when coming out of standby.
  • The USB3 stack is updated to have additional resiliency and recovery measures in place against certain unexpected hardware faults and conditions. Users will experience higher reliability with USB devices.
• [Sensors] This update improves resiliency against apps that could keep the sensor hub powered on and drain power, impacting battery life.
• [Human Interface Device (HID)] This update improves battery life related to the HID and Input stack for failed HID devices. Power hygiene is also improved against applications that might initiate HID transfers during standby.
• [Input]The update improves:
  • Reliability of the touch keyboard on the sign in screen, including when entering or changing a password.
  • Reliability of explorer.exe when closing the input switcher.
  • Performance when opening or navigating to clipboard history.
• [Fonts] The Times New Roman font family is updated to improve the rendering of combining diacritical marks across Greek and Cyrillic scripts. This update provides more accurate and visually consistent text by addressing mark positioning issues. These changes improve readability, reduce rendering inconsistencies, and better support for global language users working with Greek and Cyrillic content.
• [Task Scheduler] Task Scheduler now saves column width adjustments in task list view across sessions.
• [Desktop icons] This update improves reliability of loading desktop app shortcuts.
• [Microsoft Store]
  • This update includes underlying changes that improve download performance and bandwidth usage.
  • This update improves error reporting when downloads fail due to Windows Update group policy settings being enabled.
• [Reliability] This update improves Windows reliability on the sign-in and lock screens, in File Explorer, when using touch gestures on touchscreen devices, and when changing themes in Settings.

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.

• [Authentication] This update improves Netlogon secure channel connections between domain controllers, enabling successful connections from member servers to domain controllers set up before 2025.
• [BitLocker] This update improves BitLocker testing reliability by ensuring the required files are available for the BitLocker Drive Encryption USB BIOS Logo Test.
• [Emoji Panel Update] The emoji panel (Windows key + period (.)) now uses GIPHY for GIF content following the deprecation of Google’s Tenor API. Starting June 30, 2026, install the latest Windows update to continue using GIFs in the Emoji panel. If you don’t update, you will see a "GIF service is not available" error in the panel. Installing the latest Windows update will restore access to GIFs.
• [Recycle Bin (known issue)] Fixed: This update addresses an issue where the confirmation dialog might display an internal Recycle Bin file name instead of the original file name when permanently deleting a file. This issue might occur after installing the June 2026 security update (KB5095051).
• [Windows Push Notification Services (WNS)] Fixed: This update addresses an issue that might cause Microsoft Outlook and other applications that use WNS to stop responding (hang). This update resolves the underlying issue and improves application reliability.

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

Components updates​

AI components​

This release updates the following AI components to version 1.2605.856.0: Image Search, Content Extraction, Semantic Analysis, and Settings Model.
To learn more, see Release information for AI components.

Servicing stack update (SSU)​

Includes KB5101277 (Build 28000.2263), which improves the reliability of the Windows update installation process. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.

Known issues in 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.

Deployment​

If you deploy dynamic updates such as this update to an existing Windows image, ensure the boot.stl file is included as part of the installation media. Failure to include the file might prevent devices from successfully starting from the installation media and can result in error code 0xc0430001.

Note: The boot.stl file is used during Secure Boot validation and must match the Windows version and architecture of the image you are updating.

To ensure the boot.stl file is included as part of the installation media, do one of the following:

• Use the Update WinPE script to update an existing Windows image. (Recommended)
• Manually copy the boot.stl file from the device Windows\Boot\EFI folder to the corresponding folder on your installation media before deploying the update.

For information about how to apply Dynamic Update packages to existing Windows images, see Update Windows installation media with Dynamic Update.

Install this update​

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

File information​

For a list of the files provided in this update, download the file information for cumulative update 5095091.

For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5101277) - version 28000.2263.






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