Build 27858 for Windows 11 drops in the Canary Channel

Windows 11 build 27858 is now rolling out to users with devices enrolled in the Canary Channel. After several weeks of waiting, this update only adds a new option to open the Emoji panel from the Taskbar and pushes several fixes.

Taskbar with Emoji access

According to the official changes, Windows 11 build 27858 updates the Taskbar settings page with a new option to add or remove the button to access the Emoji panel from the Taskbar. The setting even includes an option to make the Emoji button available only when typing.

File Explorer changes

As part of the changes for File Explorer on Windows 11, when changing the text scaling size from the “Text size” settings page from the “Accessibility” section, it will also change the text size for the different dialogs, including copy, save, open, and save.

Desktop icons changes

On the desktop, the icons no longer show a colored background, and the icons should now be bigger and easier to see.

Mouse pointer customization

Although the company didn’t mention it (via @PhantomOfEarth), this release also pushes the “Customize pointer image” settings on the “Mouse pointer and touch” page to allow changing icons for each state of the pointer.

Other fixes and changes

As part of build 27858 in the Canary Channel, Microsoft is also rolling out various fixes.

• Input: Fixed problems with voice typing from the touch keyboard (Chinese Simplified narrow layout) and a ctmon.exe crash impacting typing.
• Windowing: Resolved an explorer.exe crash related to snap layouts during window manipulation.
• Taskbar: Fixed issues with taskbar icon scaling in tablet mode and incorrect focus direction with Hebrew and Arabic display languages.
• Graphics: Addressed problems with night light functionality and unexpected FPS caps.
• Network: Implemented a mitigation for a reported issue causing Wi-Fi to stop working.
• Audio: Fixed an underlying issue that could prevent MIDI devices from being recognized.
• Blue screen: Resolved Blue Screen of Death problem (KERNEL_SECURITY_CHECK_FAILURE and SYSTEM_THREAD_EXCEPTION_NOT_HANDLED) and an issue with JXR HDR wallpapers on ultrawide displays.
• Black screen: Addressed issues causing a black screen during upgrade and text disappearance after the previous flight.

Alongside these fixes, the company also notes authentication issues when upgrading a Copilot+ PC from the Dev Channel, and you may encounter an error when opening the Group Policy Editor.

Preview build download

To download and install this Windows 11 build, enroll your device in the Canary Channel through the “Windows Insider Program” settings from the “Update & Security” section. Once you enroll the computer in the program, you can download the build from the “Windows Update” settings by turning on the “Get the latest updates as soon as they’re available” option and clicking the “Check for Updates” button.