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Announcing Windows 11 Insider Preview Build 23575 (Dev Channel)

Written By published October 27, 2023

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 23575 to the Dev Channel. There will not be a SDK release for this build.

Changes and Improvements

[Start menu]

  • We’re trying out grouping recently added apps on your PC into a folder under the Recommended section of Start with some Windows Insiders in the Dev Channel.
Grouping of recently added apps under the Recommended section of the Start menu.
Grouping of recently added apps under the Recommended section of the Start menu.



  • Fixed an issue which was causing certain games to fail to launch with a 0x1 error in the last 2 Dev Channel flights.

[Copilot in Windows*]

  • Fixed an issue causing some Windows Insiders in the Dev Channel using the Home edition of Windows 11 Insider Preview builds to find Copilot in Windows has disappeared from the taskbar.

[File Explorer]

  • Fixed an issue where hovering over the first picture in Gallery would make a tooltip appear that would never dismiss.
  • Fixed an issue where closing File Explorer could cause an explorer.exe crash sometimes.
  • Did some work to improve the performance of opening the context menu.
  • Fixed an issue where the second time you opened dropdown menus in File Explorer, you wouldn’t be able to scroll it with touch.


  • Fixed an issue where Settings Home might show a prompt to sign into your Microsoft account, and fail to sign in if you tried to use it, even though Settings itself showed you were already signed in.

[Task Manager]

  • Fixed an issue where the dropdowns in settings would float up the screen if you scrolled.

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

[Copilot in Windows*]

  • When first launching or after refreshing Copilot in Windows while using voice access, you’ll need to use “Show grid” commands to click in the “Ask me anything” box for the first time.

About the Dev Channel

REMINDER: The Dev Channel has been rebooted. Windows Insiders who were in the Dev Channel on 25000 series builds have been moved to the new Canary Channel. Going forward, the Dev Channel will receive 23000 series builds. Insiders who were moved to the Canary Channel and want to move back to the Dev Channel can follow these instructions to do a clean installation of Windows 11 and then re-join the Dev Channel to receive 23000 series builds.

The Dev Channel receives builds that represent long lead work from our engineers with features and experiences that may never get released as we try out different concepts and get feedback. It is important to remember that the builds we release to the Dev Channel should not be seen as matched to any specific release of Windows and the features included may change over time, be removed, or replaced in Insider builds or may never be released beyond Windows Insiders to general customers. For more information, please read this blog post about how we plan to use the Dev Channel to incubate new ideas, work on long lead items, and control the states of individual features.

In some cases, features and experiences may go out to the Canary Channel first before going out to the Dev Channel however the Dev Channel will provide better platform stability. As we get closer to shipping, some features and experiences will also make their way to the Beta Channel when they are ready.

The desktop watermark you see at the lower right corner of your desktop is normal for these pre-release builds.

*Availability of Copilot in Windows: Copilot in Windows in preview is being rolled out gradually to Windows Insiders in select global markets. The initial markets for the Copilot in Windows preview include North America, United Kingdom and parts of Asia and South America. It is our intention to add additional markets over time.

Important Insider Links

Amanda & Brandon