Insider KB5127936 Windows 11 Insider Release Preview build 26200.9807 (25H2) and 26300.9807 (26H2) - Oct. 16

Gradual rollout​

• New! This update introduces an updated context menu that's faster, simpler, and more customizable. The updated menu opens more quickly, reduces clutter, and gives you more control over the commands and app extensions that appear when you right-click.
• You can now customize the context menu to better fit how you use Windows. Select Customize menu at the bottom of the context menu to open its Settings page:
  • Turn built-in Windows commands, such as Send to and Create shortcut, on or off.
  • Add commands such as Print to the context menu.
  • Choose which app extensions appear in the main menu or a submenu, or hide the app extensions submenu.
  • Display Cut, Copy, Paste, Rename, Delete, and Share directly in the menu instead of as a row of icons.
  • Move Properties to the bottom of the context menu.
• To personalize the context menu, right-click and select Customize menu, then choose the commands, app extensions, and layout you prefer. No action is required to use the default configuration. To see more options, hold down Shift and right-click your desktop.
  
  
  

  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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• New! Key file information, such as name, location, and date, now appears in a consistent layout on the File Explorer search results page, making search results easier to scan.
• New! The address bar now supports ~, making it quicker to navigate directly to your user profile folder and subfolders, for example, ~\AppData.
  
  
  

  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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• New! This update enables dark mode support in the Folder Options dialog in File Explorer.

• New! This update introduces a refreshed Gaming Task View experience in XBOX mode, featuring a new navigation bar that provides quick access to Exit to Desktop and Power Options, making key system actions easier to access while gaming.1
  
  
  

  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...

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• New! This update improves the Privacy & security page in Windows Settings by grouping related Camera, Microphone, and Location privacy controls and elevating usage information from linked pages onto the main page.
• New! The Device Info card on the Settings Home page, first introduced in the March 2026 preview update (KB5079391), is expanding to additional markets. Available to users signed in with a Microsoft account, the card provides a quick view of key PC specifications and usage, with more detailed device information available under Settings > System > About.1
• This update makes some small visual refinements to the design of the temporary files section under Settings > System > Storage.

• New! You can now hover over a recent message or notification in the Recent section to preview its content directly in Start without opening the item. You can manage this experience under Phone Link > Settings > Start menu personalization.
  
  
  

  Enable or Disable Mobile Device Notification Previews on Hover in Start Menu on Windows 11

  This tutorial will show you how to enable or disable showing full mobile device (phone) notifications when hovering over them in the Start menu for your account in Windows 11. You can directly access content on your mobile device from the Start menu on your PC. Using this feature, you can view...

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• New! This update improves animations of app window previews when you move the mouse across app icons in the taskbar.
• This update improves the underlying state persistence of taskbar settings related to multiple monitors across monitor connections and disconnections.

• New! Magnifier now includes a contrast theme toggle that can reduce screen glare while keeping the original colors in photos, videos, and charts. The toggle applies a dark contrast theme by default and is available from the Magnifier toolbar. To choose a different contrast theme, go to Settings > Accessibility > Magnifier. Color inversion remains available as a separate option.
  
  
  

  Turn On or Off a High Contrast Theme in Windows 11

  This tutorial will show you how to turn on or off using a high contrast theme for your account in Windows 11. Text with low contrast can be difficult to read for people with low vision. There are web sites that have, for example, poor color combinations such as blue links on black backgrounds...

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• New! Magnifier now supports per-monitor zoom, allowing each display to use its own zoom level while keeping the magnified view within that display. To use per-monitor zoom, set your displays to Extend under Settings > System > Display.
  
  
  

  Enable or Disable Magnifier Zoom per Display in Windows 11

  This tutorial will show you how to enable or disable Magnifier to zoom each display independently 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...

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  • To adjust a display, move your pointer to it and press Windows key + Plus (+) or Windows key + Minus (-), use Ctrl + Alt with the mouse wheel, or move the Magnifier toolbar to that display and use its controls.
  • Per-monitor zoom is on by default. You can turn it off or adjust individual zoom levels from the Magnifier toolbar or under Settings > Accessibility > Magnifier.
    
    
    

    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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• New! Magnifier now supports viewport locking for multi-monitor setups with per-monitor zoom turned on. It keeps the magnified view on a display in place while you move the pointer to another display. The locked display remains interactive. Point to a display and press Ctrl + Windows key + K to lock or unlock its view.
  • Press Windows key + Esc to release all locked displays.
  • You can change the lock shortcut to Ctrl + Alt + P under Settings > Accessibility > Magnifier.
    
    
    

    Change Lock View Shortcut for Magnifier Zoom on Multiple Displays in Windows 11

    This tutorial will show you how to change the lock view keyboard shortcut used to lock the current view on a screen until unlocked when using zoom in 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...

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• New! This update improves Live Captions with a new Include screen reader audio setting, which is off by default. With the setting off, Live Captions won't transcribe audio from screen readers such as Narrator, JAWS, and NVDA, keeping captions focused on microphone and system audio. To turn on this setting, go to Settings > Accessibility > Captions.
  
  
  

  Enable or Disable Include Screen Reader Audio in Live Captions on Windows 11

  This tutorial will show you how to turn on or off including screen reader audio with Live Captions for your account in Windows 11. Live captions helps everyone, including people who are deaf or hard-of-hearing, better understand audio by providing automatic transcription. Captions are...

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• New! Narrator now supports reading and navigating math equations in supported Microsoft 365 apps, including Word and PowerPoint, and supported web content in Microsoft Edge (version 153.0.4234.32 and later) and Google Chrome (version 153.0.8010.18 and later). This makes it easier for users who are blind or have low vision to understand and explore equations, formulas, and scientific notation.
  
  
  

  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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  • Press Narrator key + Alt + N to turn on math navigation and use the arrow keys to explore parts of an equation. Press Esc to exit.
  • Math reading supports English (United States), English (United Kingdom), Traditional Chinese, Finnish, German, and Spanish. You can change the language and other math reading preferences in Narrator settings under Accessibility > Narrator > Math reading.
    
    
    

    Change Narrator Math Reading Language in Windows 11

    This tutorial will show you how to change the language used for reading mathematical content by Narrator math reading 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...

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• New! This update improves family safety messaging when applications are blocked because of age-restricted parental controls.

• New! This update enables Windows Recovery Environment (WinRE) to automatically reuse eligible Wi-Fi profiles already saved in Windows, including supported certificate-based networks. Devices can now get online automatically during recovery scenarios such as quick machine recovery or cloud rebuild, without preconfiguring Wi-Fi credentials in WinRE. This capability is on by default, and IT admins can disable it. This feature was previously disclosed last month and is now beginning to roll out. For more information about networking in WinRE, see Windows Recovery Environment (Windows RE).

• New! This update introduces Cloud rebuild, a new recovery option that reinstalls Windows 11 using a Windows image and device drivers downloaded from Windows Update, including when Windows is unable to start. No USB media or custom image is required. Cloud rebuild includes:
  • Drive sanitization: Choose to remove your files or securely erase data using the storage hardware's erase capability before Windows is reinstalled. Sanitization is irreversible.
  • Remote management: IT administrators can configure and start a Cloud rebuild remotely through the Recovery CSP using either the currently installed build or a specified target build.

1. In Windows, go to Settings > System > Recovery, and then select Rebuild PC. The device restarts into the Windows Recovery Environment and starts Cloud rebuild.
   
   Alternatively, if Windows can't start, the device enters the Windows Recovery Environment automatically after repeated boot failures. From WinRE, select Troubleshoot > Recovery and uninstall > Cloud rebuild.
2. Connect to a wired Ethernet or Wi-Fi network.
3. Review the target Windows build, edition, and language, and then confirm the data loss warning before the rebuild begins. You can choose whether to remove files or remove and sanitize files before Windows reinstalls.

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), build 28020.3142 (Beta 26H1), and build 28120.3032 (Experimental 26H1)...

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• New! This update introduces accelerated app launches that make opening Microsoft Edge feel faster and more consistent. When you select a link or open Edge from the taskbar or Start menu while Edge is already running in the background, Windows now routes your request directly to the running instance instead of first starting an extra, temporary process. Removing that step shortens the launch path, so Edge responds more quickly, most noticeably on busy devices when you're multitasking. This is the first step in a broader Windows capability that any app can adopt to speed up its own launches.

• New! Policy-based inbox app removal now supports multi-session environments. IT administrators can use the existing policy-based app removal capability to manage the removal of supported inbox apps on Windows 11 Enterprise and Education devices in multi-session environments.

• New! This update improves the adaptive hibernate policy to provide more instant-on resumes from Modern Standby while helping preserve battery life when the charge is low. Noticeable changes include less hibernation while the battery is above 80% and hibernating sooner when the battery is below 10%.
  
  
  

  Disable Modern Standby in Windows 10 and Windows 11

  This tutorial will show you how to disable Modern Standby (S0 Low Power Idle) to enable S3 support on a Windows 10 and Windows 11 device. In Windows 10 and Windows 11, there are two power models for PCs: S3 and Modern Standby (S0 Low Power Idle). The S3 power model is an older standard and is...

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  Hibernate Computer in Windows 11

  This tutorial will show you different ways on how to hibernate your Windows 11 computer. Hibernate was designed for laptops and might not be available for all PCs. (For example, PCs with Modern Standby may not have the hibernate option.) Hibernate uses less power than sleep and when you start...

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• New! This update expands memory integrity protection across eligible devices. Supported PCs might now have memory integrity (HVCI) enabled during updates to help improve security and prepare devices for advanced Windows security features, while respecting existing user or IT administrator choices. For more information about memory integrity, see Enable memory integrity.
  
  
  

  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...

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• New! Windows now supports IPv6 CLAT for Wi-Fi and Ethernet network interfaces, adding client-side 464XLAT translation so IPv4-only applications can continue reaching IPv4 services from IPv6-only networks. This helps organizations advance IPv6-only deployments while preserving compatibility for legacy IPv4 application scenarios.
  • Prefix discovery: PREF64 is discovered through Router Advertisements (RA) by default, with DNS ipv4only.arpa available as a fallback.
  • Requirements: CLAT requires SLAAC-based IPv6 addressing. DHCPv6 Prefix Delegation and Windows Subsystem for Linux (WSL) aren't currently supported.
  • Configuration: Enable CLAT by using the following command, or use Group Policy under Network > TCPIP Settings > IPv6 Transition Technologies:
    
    Console
    
    netsh interface clat set global permit=enabled pref64fromdns=enabled pref64fromra=enabled

• New! This update adds a warning before prompt-based protect and unprotect operations. The warning explains that this prompt-based experience will be retired in April 2027. If you or an app use these prompts, stop creating new prompt-protected data, use a supported non-interactive protection flow, and decrypt or migrate existing prompt-protected data before retirement. DPAPI operations that don't use the prompt-based flow aren't affected. For more information, see CRYPTPROTECT_PROMPTSTRUCT structure (dpapi.h).

• This update makes underlying platform changes to generally improve Windows Spotlight reliability on the lock screen.
  
  
  

  Change Lock Screen Background to Spotlight, Picture, or Slideshow in Windows 11

  This tutorial will show you different ways to change the lock screen background to Windows Spotlight, a picture, or slideshow for your account in Windows 11. The lock screen (aka: welcome screen) is the screen you see at startup and when you lock (Win+L) the PC. You will need to dismiss the...

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• This update provides Windows text shaping support for Unicode 17.0, helping Windows correctly display and shape newly encoded characters and scripts. Unicode 17.0 added 4,803 characters, including support for four newly encoded scripts: Beria Erfe, Sidetic, Tai Yo, and Tolong Siki. These updates help keep Windows text support current as the Unicode Standard evolves and improve support for languages and writing systems used by people around the world.

Normal rollout​

• This update addresses an issue that prevented non-admin users from establishing Remote Desktop connections to remote devices with Administrator protection enabled. Affected connections might have failed with error 0xC000000D and displayed the message, "The token that was passed to the function is invalid."
• This update addresses an issue that prevents the Specify thumbprints of certificates representing trusted .rdp publishers policy from being configured through Microsoft Intune.

• This update improves BitLocker pre-boot PIN retry handling to prevent unintended repeated submissions from causing TPM dictionary-attack lockout and recovery.

• This update fixes an issue where you might be unable to turn on Smart App Control in the Windows Security app after it has been turned off. On affected devices, the option to turn on Smart App Control might be grayed out.
  
  
  

  Turn On or Off Smart App Control in Windows 11

  This tutorial will show you how to manually turn on or off Smart App Control in Windows 11. Smart App Control (SAC) is a new security feature starting with Windows 11 build 22567. Smart App Control can work alongside your other security software, such as Microsoft Defender, for added...

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Release Preview Build 26200.9807/26300.9807 - Windows Insider Program

Release notes for Release Preview Build 26200.9807/26300.9807.

learn.microsoft.com

Announcing new builds for 16 October 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

Select language for Windows 11, version 25H2 (26200.9807) amd64

Select language for Windows 11, version 25H2 (26200.9807) 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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Select language for Windows 11, version 26H2 (26300.9807) amd64

Select language for Windows 11, version 26H2 (26300.9807) 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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Select language for Windows 11, version 25H2 (26200.9807) arm64

Select language for Windows 11, version 25H2 (26200.9807) 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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Select language for Windows 11, version 26H2 (26300.9807) arm64

Select language for Windows 11, version 26H2 (26300.9807) 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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