Microsoft has released a build 23403 of Windows 11 for Windows Insider on the dev channel. This week Microsoft added a new Canary channel to the Windows Insider Program (see my blog post) and devices on the old Dev channel are being moved to the new Canary channel. This build is a lower build number than the one shipped to the dev channel last week (25309), so if you had last week’s dev build you device will go to the Canary channel.

To get this build you will either have to perform a clean install of Windows, enrol a new device in the Windows Insider Program or move a device on the Release Preview or Beta channel to the dev channel.

Changes in build 23403

With this build Microsoft have added more languages to the live caption feature:

Chinese (Simplified and Traditional), French, German, Italian, Japanese, Portuguese (Brazil), Spanish and other English dialects

Access Keys in File Explorer

Microsoft have added access key shortcuts to the context menu in File Explorer. You can try this by pressing the menu key when in File Explorer:

File Recommendations in File Explorer

File recommendation are going to show up in File Explorer

This feature (as pictured below) will be available to users signed into Windows with an Azure Active Directory (AAD) account. Files that are recommended will be cloud files associated with that account, either owned by the user, or shared with the user.

Here are the other changes and known issues with the build:

Changes and Improvements


  • Users will now see a copy button for quickly copying two-factor authentication (2FA) codes in notification toasts from apps installed on the PC or from phones linked to the PC. We make a best effort to determine if a notification toast has an authentication code but please send us feedback if we got it wrong or if we failed to detect the code in a notification toast. This change is beginning to roll out, so not all Insiders in the Dev Channel will see it right away.

New copy button for quickly copying two-factor authentication (2FA) codes in notification toasts.

[Taskbar & System Tray]

  • We have added a glanceable VPN status into the system tray when connected to a recognized VPN profile. The VPN icon, a small shield, will be overlayed in over the active network connection. Currently, the overlayed VPN icon does not use your system accent color but will do so in a future build.

A glanceable VPN status into the system tray.

[Search on the Taskbar]

  • The search box on taskbar will be lighter when Windows is set to a custom color mode. Specifically, when the Windows 11 mode is set to dark, and the app mode is set to light under Settings > Personalization > Colors you will see a lighter search box on taskbar.

The search box on taskbar will be lighter when Windows is set to a custom color mode.


  • We have updated the Simplified Chinese handwriting recognition engine to be faster and more accurate as well as supported characters defined in GB18030-2022. Currently you can write characters in GB18030-2022 Level 2 and some of characters in GB18030-2022 Level 1 in the handwriting panel or directly into the text field when it’s supported. Please try it and let us know what you think.

The Simplified Chinese handwriting recognition engine is faster and more accurate and now supports characters defined in GB18030-202.


  • Right-clicking on a Win32 app in Start, or searching for the app, and choosing “Uninstall” will now take you to the Settings to uninstall the app.


[Search on the Taskbar]

  • Fixed rendering issues when using the touch keyboard with the search box on taskbar.
  • Fixed an issue when double clicking the search highlight glyph in the search box makes it disappear.
  • Fixed an issue where the search box would randomly disappear.
  • Fixed an issue where the search icon flips incorrectly for right-to-left (RTL) languages.
  • Fixed on issue where you might have seen some text flicker in the search box when you click into it.
  • Fixed an issue where the search box might disappear on one monitor if you are using multiple monitors.
  • Made some accessibility fixes to the settings for search under Settings > Personalization > Taskbar.

[File Explorer]

  • Fixed an underlying issue believed to be the cause of File Explorer unexpectedly jumping into the foreground sometimes.

NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.

Known issues

[File Explorer]

Insiders who have access keys in File Explorer:

  • Access keys will appear inconsistently if no button is pressed. Pressing a button will cause them to reappear.

Insiders will have issues with the following commands on recommended files in File Explorer:

  • Clicking on the Share command will currently bring up the Windows share sheet (non-OneDrive).
  • Clicking on the “Open File Location” command will pop an error dialog that can easily be dismissed.
  • Clicking on the ‘Remove from list’ command will result in no actions.

[Live captions]

  • On ARM64 devices, enhanced speech recognition support installed through the Language & Region settings page will require restarting live captions if you switch languages in the live captions Caption language menu.
  • Live captions for Chinese Traditional currently does not work on Arm64 devices.
  • Certain languages shown on the Language & Region settings page will indicate speech recognition support (e.g., Korean) but don’t yet have support for live captions.
  • When adding a language through the Language & Region settings page, language feature installation progress may become hidden, and you may not see install completion of “Enhanced speech recognition” (required by Live Captions). (You can use the language’s “Language options” to monitor progress.) If this happens, there may be an unexpected delay before the live caption setup experience detects this and lets you continue.
  • Captioning performance may be degraded in non-English languages and missing out-of-language filtering in non-English (United States) languages which means that incorrect captions will be shown for speech not in the caption language.

[Voice access]


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