Microsoft Support:
Changes and improvements gradually being rolled out
[Start menu]
- See more of your latest activities at a glance: Phone companion for the Start menu now shows more of your recent activity, with a scrollable side pane so you can view even more without leaving the Start menu.
Add or Remove Phone Link Mobile Device on Start Menu in Windows 11
This tutorial will show you how to turn on or off show your Android or iPhone mobile device from Phone Link in the Start menu for your account in Windows 11. Starting with Windows 11 build 26100.3915 (24H2) and build 22631.5262 (23H2), you can directly access content on your mobile device from...
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The phone companion in Start with a scrollable pane for viewing more recent mobile activity.
[Settings]
- Windows Insiders will now see Energy Recommendations directly in Quick Settings, making it easier to discover and take actions that can help reduce energy consumption and improve device sustainability.
Review and Apply Energy Recommendations in Windows 11
This tutorial will show you how to review and apply energy recommendations for your account in Windows 11. Starting with Windows 11 build 22621.1344, Windows now provides Energy Recommendations in Settings. You can review and apply these recommendations to improve the energy efficiency of your...
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The Power & battery settings page showing Energy Recommendations, including suggested actions. - Made some small visual refinements to the design of the temporary files section 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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[Narrator]
- Building on the math reading and navigation support introduced for Narrator in Build 26340.9354, we're expanding the experience with additional language and browser support. Narrator math reading now supports a total of six languages: English (United States), English (United Kingdom), Traditional Chinese, Finnish, German, and Spanish. You can choose your preferred language under Math reading settings in Narrator settings.
- Math reading is also now available for supported web content in Microsoft Edge Stable version 153.0.4234.32 and later and Chrome Stable version 153.0.8010.18 and later, making it easier to read and explore equations across more of the places where students and professionals work.
Enable or Disable Math Reading for Narrator in Windows 11
This tutorial will show you how to turn on or off math reading in Narrator for your account in Windows 11. Narrator is a screen reader included with Windows 11 that describes what's on your screen. Narrator lets you use your PC without a mouse to complete common tasks if you’re blind or have...
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The Narrator Math reading settings page in Windows Settings.
Audio
- Fixed an issue affecting certain USB Audio Class 1.0 devices, including some multichannel audio headsets, that could prevent the device from working correctly after installing the latest updates.
[Taskbar]
- Improved underlying state persistence of taskbar settings related to multiple monitors across monitor connections and disconnections.
Reminders for Windows Insiders in the Experimental channel
- Updates are based on Windows 11, version 26H2 via an enablement package (Build 26340.9577).
- 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.
Source:
Windows 11 Insider Experimental Preview Build 26340.9577 - Windows Insider Program
Release notes for Windows 11 Insider Experimental Preview Build 26340.9577
learn.microsoft.com
Announcing new builds for 25 September 2026
Hello Windows Insiders, Today, we’re releasing new Windows 11 Insider Preview builds to the Beta and Experimental channels. New builds this week Select your channel below to view its release notes: Beta:
blogs.windows.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
Select language for Windows 11 Insider Preview Feature Update (26340.9577) amd64
Select language for Windows 11 Insider Preview Feature Update (26340.9577) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
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ARM64 ISO download:
Select language for Windows 11 Insider Preview Feature Update (26340.9577) arm64
Select language for Windows 11 Insider Preview Feature Update (26340.9577) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
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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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