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

Brings Canary and Dev Insiders fixes for shutdown, hibernate, Microsoft Store updates, Copilot keyboard access, and screen flickering. A later update for Dev Insiders tests the servicing pipeline.

Does it affect you? Applies to: Windows Insiders in the Canary Channel receive build 26100; the release notes also say the Dev Channel receives the same build. The later build 26100.268 update is for Dev Channel Insiders.

Review notes Additional details from the official release notes (1) Read note

In detail Voice access and writing with Windows Ink may not work reliably in the updated Copilot in Windows experience.

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

Shutdown and hibernate work after a fix for an issue affecting the latest builds.¹

Microsoft Store and Windows Update

App updates from Microsoft Store and Windows updates in Settings no longer show error 0x80240067 for some Insiders.²

Copilot in Windows

For: Insiders using the updated Copilot experience

You can use a keyboard to move focus to Copilot’s more-options and refresh buttons.³
Fixes keyboard focus for the “…” and refresh buttons in the updated Copilot in Windows experience.

Windowing

A crash that could make the screen flash black is fixed.⁴
Fixes a DWM crash affecting some Insiders in the latest flights.

Improvements 2 changes

Servicing

Gradual rollout

For: Dev Channel Insiders

The Dev Channel is starting to receive build 26100.268 to test the servicing pipeline. It is the same as the April 2024 security update for Windows 11, version 23H2.⁵
Cumulative Update Build 26100.268 (KB5036908).

Desktop watermark

For: Insiders using this build

The build watermark is not shown in the lower-right corner of the desktop in this build; it is expected to return in future Insider Preview builds.⁶

Technical details

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

Data sheet

Released: 2024-04-03
Type: Windows Insider build

Version	Build	Channel
—	26100	Canary Channel

Security

No vulnerabilities are listed for this update.

Sources

Windows Insider Blog

Updated Oct 27, 2026

Cited passages from Microsoft's official notes (6)

1. Made another fix to address the issue causing shutdown and hibernate to not work in the latest builds. blogs.windows.com
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. 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. 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. We are starting to roll out Cumulative Update Build 26100.268 (KB5036908) to Windows Insiders in the Dev Channel. blogs.windows.com
6. 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

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 4/5, clarity 4/5, completeness 5/5. 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