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Build 26100

Build 26100: Windows Insider Dev Channel, April 2024. Shutdown, hibernate and Copilot keyboard fixes

In short

Build 26100 for Canary and Dev Insiders fixes shutdown, hibernate, Copilot keyboard focus and other issues. A later cumulative update, Build 26100.268, tests the servicing pipeline in the Dev Channel.

Does it affect you? Applies to: Windows Insiders in the Canary and Dev Channels. The later cumulative update is rolling out to Dev Channel Insiders.

Build
26100
Review notes Additional details from the official release notes (3) Read notes
  • Known issues Microsoft is investigating some Canary and Dev Insiders stuck on Build 26040 or 23620; the post advises downloading the latest ISO, doing a clean install, and opting back into flighting if they want the latest build. Copilot may launch unexpectedly after a restart; voice access is unreliable and Windows Ink does not work with the updated Copilot experience; docked Copilot may not fill a wide panel until resized.
  • What changes Build 26100.268 is KB5036908. The April 2024 security update for Windows 11, version 23H2, is KB5036893.
  • In detail Windows Ink writing in the updated Copilot experience does not work.

The official sources are linked at the end of the page.

This is a test build for people in the Windows Insider Program. Features in it can change, be removed, or never reach regular Windows releases.

What changes

Fixes 4 changes

Shutdown and hibernate

For: Insiders in the Canary and Dev Channels

  • Shutdown and hibernate work again for the issue affecting recent builds.1

Microsoft Store and Windows Update

For: Some Insiders in the Canary and Dev Channels

  • Some Insiders no longer see error 0x80240067 when downloading app updates from Microsoft Store or Windows updates in Settings.2

Copilot in Windows

For: Insiders using the updated Copilot experience

  • Keyboard users can move focus to Copilot's more-options and refresh buttons.3
    Fixes keyboard focus in the updated Copilot in Windows experience that lets Copilot act like a normal application window.

Windowing

For: Some Insiders in the Canary and Dev Channels

  • Some Insiders should no longer see their screen flash black because of a crash.4
    Fixes a DWM crash affecting some Insiders in the latest flights.

Improvement 1 change

Desktop build watermark

For: Insiders in the Canary and Dev Channels

  • The build watermark is absent from the desktop in this build and will return in a future Insider Preview build.5

New feature 1 change

Cumulative Update Build 26100.268

Gradual rollout

For: Insiders in the Dev Channel

  • A cumulative update is rolling out to Dev Channel Insiders to test the servicing pipeline.6
    It is the same as the April 2024 security update for Windows 11, version 23H2 (KB5036908).

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-04-03
Type
Windows Insider build
VersionBuildChannel
— 26100 Dev Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (6)
  1. 1. Made another fix to address the issue causing shutdown and hibernate to not work in the latest builds. blogs.windows.com
  2. 2. Fixed an issue resulting in some Insiders seeing error 0x80240067 when trying to download app updates from Microsoft Store or Windows updates in Settings in the latest builds. blogs.windows.com
  3. 3. we have fixed the issue that prevented the ability to bring focus to the “…” or refresh buttons within Copilot when using a keyboard blogs.windows.com
  4. 4. Fixed a DWM crash impacting some Insiders in the latest flights (this could result in you seeing your screen flash black). blogs.windows.com
  5. 5. The build watermark at the lower right-hand corner of the desktop is not present in this build and will return in future Insider Preview builds. blogs.windows.com
  6. 6. This update is designed to test our servicing pipeline and is the same as the April 2024 security update released earlier this month for Windows 11, version 23H2. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 6 quoted passages
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 3/5, clarity 4/5, completeness 3/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake