Insider KB5124114 Windows 11 Insider Experimental (26H2) build 26340.9482 - Sept. 11

KB5124137 Windows 11 Insider Experimental (26H2) build 26340.9502 - Sept. 18

UPDATE 9/25: https://www.elevenforum.com/t/windows-11-insider-experimental-26h2-build-26340-9577-sept-25.49700/ Microsoft Support: Changes and improvements gradually being rolled out [Accessibility - Mouse indicator] We're introducing a sleeker new animation for the Mouse indicator. You can...

www.elevenforum.com

Changes and improvements gradually being rolled out​

[Security]​

• Memory Integrity protection expands automatically to more eligible devices. As outlined in our recent blog, Windows might now enable Memory Integrity (HVCI) during updates on supported PCs to help improve security and prepare devices for advanced Windows security features, while respecting existing user or IT administrator choices.
  
  
  

  Enable or Disable Core Isolation Memory Integrity in Windows 11

  This tutorial will show you how to turn on or off core isolation memory integrity in Windows 11. Core isolation is a security feature of Microsoft Windows that protects important core processes of Windows from malicious software by isolating them in memory. It does this by running those core...

  www.elevenforum.com

[Context menu]​

Customize Context Menu in File Explorer on Windows 11

This tutorial will show you how to customize what appears in the context menu in File Explorer for your account in Windows 11. A context menu is a graphical user interface (GUI) that appears when you right click or press and hold on an item (ex: desktop, file, folder, drive, etc...) in Windows...

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• We've added a new teaching tip you might see as a first-time experience to help you learn about the customization options.
  
  
  

  Enable or Disable "Customize menu" Tip in Windows 11

  This tutorial will show you how to enable or disable showing the "Customize menu" tip on the modern context menu for your account in Windows 11. A context menu is a graphical user interface (GUI) that appears when you right click or press and hold on an item (ex: desktop, file, folder, drive...

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• In theme with giving you more control, you can also now turn off the customize context menu entry in the new context menu settings.
  
  
  

  Add or Remove "Customize menu" on Context Menu in Windows 11

  This tutorial will show you how to add or remove "Customize menu" on the modern context menu for your account in Windows 11. A context menu is a graphical user interface (GUI) that appears when you right click or press and hold on an item (ex: desktop, file, folder, drive, etc...) in Windows. A...

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• We've fixed a few small issues with the Send To option in the context menu not working as expected.
  
  
  

  Add or Remove Send to Context Menu in Windows 11

  This tutorial will show you how to add or remove the Send to context menu for your account or all users in Windows 11. The Send to context menu allows you to quickly send a copy of items (ex: files, folders, libraries) to Bluetooth device, Compressed (zipped) folder, Desktop (create shortcut)...

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[File Explorer search]​

• Search from This PC in File Explorer is now indexer-based, making it much faster and consistent with search from File Explorer Home.

[Taskbar]​

• Improved how the IME icon scales in the taskbar when using small taskbar icons.

[Screen capture]​

• We updated the visual indicator shown during screen capture, changing the capture border from yellow to red to make active capture sessions easier to identify.
  
  
  

  Take and Annotate Screenshots with Snipping Tool app in Windows 11

  This tutorial will show you how to use the Snipping Tool app to take and annotate screenshots to save or share in Windows 11. The Snipping Tool app includes a built-in screen recorder and allows you to quickly take and annotate screenshots, photos and other images with your pen, touch, or mouse...

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  Screen capture displaying a red border around the captured area.

[Settings]​

• Made some small visual adjustments to improve the design of the Temporary files page under Settings > System > Storage.
  
  
  

  Delete Temporary Files in Windows 11

  This tutorial will show you how to delete temporary files on your drives in Windows 11. Windows creates temporary files while installing apps, loading web pages, or running updates. Left unchecked, they can use and hold up storage space. Temporary files serve a purpose in the moment—they help...

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• Fixed an issue causing mouse cursor customization to not work correctly after the latest flights.
• Fixed an issue causing desktop background customization to not persist after a reboot after the latest flights.

[Brightness]​

• Fixed an underlying issue resulting in some Insiders experiencing issues with brightness after the latest flights, including brightness settings being unexpectedly grayed out. File a new piece of feedback with as many details as possible if you continue experiencing issues.

Reminders for Windows Insiders in the Experimental channel​

• Updates are based on Windows 11, version 26H2 via an enablement package (Build 26340.9482).
• Many features are rolled out using Controlled Feature Rollout technology, starting with a subset of Insiders and ramping up over time. We monitor feedback to see how they land before pushing them out to everyone in this channel.
• The desktop watermark shown at the lower right corner of the desktop is normal for Windows Insider pre-release builds.
• Features and experiences included in these builds might never get released as we try out different concepts and get feedback. Features might change over time, be removed, or replaced and never get released beyond Windows Insiders. Some of these features and experiences could show up in future Windows releases when they're ready.
• Some features in active development we preview with Windows Insiders might not be fully localized, and localization will happen over time as features are finalized. As you see issues with localization in your language, report those issues to us via Feedback Hub.
• Check out Flight Hub for a complete look at what build is in which Insider channel.

Windows 11 Insider Experimental Preview Build 26340.9482 - Windows Insider Program

Release notes for Windows 11 Insider Experimental Preview Build 26340.9482

learn.microsoft.com

Announcing new builds for 11 September 2026

Hello Windows Insiders, Today, we’re releasing new Windows 11 Insider Preview builds to the Beta, Experimental, and Release Preview channels. New builds this week Select your channel below to view its release notes: B

blogs.windows.com

Download Official Windows 11 ISO file from Microsoft

This tutorial will show you how to download an official Windows Server or Windows 11 64-bit or ARM64 ISO file from Microsoft. Microsoft provides ISO files for Windows Server and Windows 11 to download. You can use these ISO files to clean install or in-place upgrade Windows 11. The Flight Hub...

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Select language for Windows 11 Insider Preview Feature Update (26340.9482) amd64

Select language for Windows 11 Insider Preview Feature Update (26340.9482) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.

uupdump.net

Select language for Windows 11 Insider Preview Feature Update (26340.9482) arm64

Select language for Windows 11 Insider Preview Feature Update (26340.9482) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.

uupdump.net

UUP Dump - Download Windows Insider ISO

UUP Dump is the most practical and easy way to get ISO images of any Insider Windows 10 or Windows 11 version, as soon as Microsoft has released a new build. UUP Dump creates a download configuration file according to your choices, downloads necessary files directly from Microsoft servers, and...

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