Insider KB5124196 Windows 11 Insider Beta (26H1) build 28020.3142 - Oct. 2

Windows 11 Insider Beta (26H1) build 28020.3172 - Oct. 7

Microsoft Support: Source: https://learn.microsoft.com/en-us/windows-insider/release-notes/beta-26h1/preview-build-28020-3172 https://blogs.windows.com/windows-insider/2026/10/07/announcing-new-builds-for-7-october-2026/ Check Windows Updates UUP Dump: 64-bit ISO download...

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Changes and improvements gradually being rolled out*​

• This update includes a small set of general improvements and fixes that improve the overall experience for Insiders running this build on their PCs.

[Windows Magnifier]​

• Magnifier now gives you more control over how you zoom. You can type an exact zoom percentage directly in the Magnifier toolbar to land on precisely the level you need.
  
  
  

  Change Magnifier Zoom Level in Windows 11

  This tutorial will show you how to change the zoom level of Magnifier 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 the Magnifier zoom level to choose how much Magnifier enlarges the screen when turned...

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• We've also added preset step increments (5%, 10%, 25%, 50%, 100%, 150%, 200%, and 400%) to the Settings dropdown, so you can jump to common levels in a single click. Whether you need a subtle boost or a dramatic close-up, Magnifier adapts to how you want to zoom.
  
  
  

  Change Magnifier Zoom Increment in Windows 11

  This tutorial will show you how to change the zoom increment of Magnifier 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 the Magnifier zoom increment to choose how much the screen enlargement level...

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  Enter an exact percentage or jump to preset steps - 5% up to 400%.

[Windows Recovery]​

• We're introducing Cloud rebuild, a new recovery option that restores a Windows 11 PC to a clean, known-good state by performing a full OS reinstall, even when Windows won't boot. Unlike Reset this PC, Cloud rebuild downloads both the target Windows image and the device's drivers from Windows Update, so the device comes back fully functional without USB media, without a custom image, and without depending on the health of the currently installed OS.
• In this preview, you can try Cloud rebuild today:
  1. Start it directly from the Windows Recovery Environment (WinRE) by selecting Troubleshoot > Recovery and uninstall > Cloud rebuild.
  2. Connect over wired Ethernet or a Wi-Fi network from within WinRE.
  3. Review the target Windows build, edition, and language, then confirm the data-loss warning before the rebuild begins.
     
     
     

     Cloud Rebuild Windows 11

     This tutorial will show you how to use Cloud rebuild to perform a full clean reinstall of Windows 11 from Windows Recovery (WinRE). Starting with Windows 11 build 26300.8772 (Experimental 26H2), build 26220.9343 (Beta 25H2), and build 28120.3032 (Experimental 26H1) for Insiders, Microsoft is...

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     The new Cloud rebuild option in Windows Recovery Environment (WinRE), which enables a full Windows reinstall using files downloaded from Windows Update.

[File Explorer]​

• Customizations
  • Improved File Explorer to keep folder view customizations, such as sorting and icon size preferences, consistent across different access paths and apps.
• Address bar improvements
  • The address bar now supports paths containing double backslashes and quotation marks, for example, C:\Users\user or "C:\Users\user", improving compatibility with a wider range of inputs.
    
    
    

    Show Full Path in File Explorer Address Bar in Windows 11

    This tutorial will show you how to see the full path in the address bar of File Explorer on demand in Windows 10 and Windows 11. File Explorer shows breadcrumbs in the address bar by default. Breadcrumbs display the hierarchy path of folders that were navigated to for the current folder...

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  • Improved reliability of the address bar suggestion dropdown so it now consistently closes after an item is selected.
• Refinements to the rename experience
  • Fixed an issue where text would be repeatedly selected while renaming items in folder views.
  • Fixed an issue where updated names with case-only changes weren't immediately reflected in folder views across local and cloud storage.

Reminders for Windows Insiders in the Beta (26H1) 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 Beta (26H1) Preview Build 28020.3142 - Windows Insider Program

Release notes for Windows 11 Insider Beta (26H1) Preview Build 28020.3142

learn.microsoft.com

Announcing new builds for 2 October 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

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 (28020.3142) amd64

Select language for Windows 11 Insider Preview Feature Update (28020.3142) 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 (28020.3142) arm64

Select language for Windows 11 Insider Preview Feature Update (28020.3142) 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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