Here is a summary of the official announcement and key details for Windows 11 Insider Preview Build 27909 (Canary Channel):
What's New in Build 27909?
Release Channel: Canary Channel (aimed at very early testing and feedback)
Main Focus: General platform improvements and key bug fixes rather than major new features
Key Fixes and Improvements
Xbox App / Admin Protection
Fixed a bug where the Xbox app could not launch when administrator protection was enabled
Also resolved errors (0xC0000142 or 0xC0000045) that may have affected launching other apps
Settings
Battery percentage now shows again at the top of System > Power & Battery (previously missing)
Remote Desktop
Fixed graphical/rendering distortions over Remote Desktop sessions on Arm64 PCs
Other Fixes
Addressed a high-frequency crash related to pcasvc.dll
Media Player no longer shows a disconnect option for devices already unplugged
Known Issues
Copilot+ PC PIN/Biometrics:
If you switch to Canary Channel on a new Copilot+ PC from another channel or retail build, Windows Hello PIN & biometric sign-in may not work (error 0xd0000225). Suggested workaround: Recreate the PIN by choosing “Set up my PIN.”
No SDK for 27xxx builds will be released at this time.
Feedback Encouraged: Users are urged to use Feedback Hub to report issues, continuing Microsoft's iterative development process.
If you need feedback from early adopters or a deeper analysis, let me know! If you want detailed technical changes, I can search for more or analyze your uploaded files for additional context. Source: Microsoft - Windows Insiders Blog Announcing Windows 11 Insider Preview Build 27909 (Canary Channel)
Here are the official highlights for the Windows 11 Insider Preview Build 27909 (Canary Channel):
Changes and Improvements
General improvements and fixes have been made to enhance the overall experience for Insiders using this build.
Fixes
[Administrator Protection]
Fixed an issue where the Xbox app (and potentially other apps) would not launch if administrator protection was enabled, displaying errors 0xC0000142 or 0xC0000045.
[Settings]
Fixed a bug where the battery percentage was missing from the top of System > Power & Battery in recent builds.
[Remote Desktop]
Fixed severe graphical distortions and rendering issues while using remote desktop on Arm64 PCs.
[Other]
Fixed a frequent crash involving pcasvc.dll.
Fixed a scenario where if you disconnected from a casting device outside of Media Player, the Media Player app would still show an option to disconnect.
Fixed Remote Credential Guard failures between the latest Windows 11 builds and Server 2022 (and below).
Known Issues
[General]
IMPORTANT for Copilot+ PCs: If joining the Canary Channel from Dev Channel/Release Preview/retail on a Copilot+ PC, you will lose Windows Hello PIN and biometrics login (error 0xd0000225: "Something went wrong, and your PIN isn’t available"). To fix, click "Set up my PIN".
Some Insiders may experience repeated bugchecks (KERNEL_SECURITY_CHECK_FAILURE) after upgrade, possibly when connecting to VPN.
This build plays the Windows Vista boot sound instead of the Windows 11 boot sound (this will be fixed soon).
[Settings]
Settings may crash when interacting with options under Settings > System > Power & Battery.
Some apostrophes in Settings text/dialogs may not display correctly and show random characters.
Reminders
Canary Channel builds are early development and may not match any specific future Windows release.
Many features are rolled out gradually and might never reach production.
Features and experiences may first appear in Dev/Beta channels before Canary, or vice versa.
Not all features in these builds are fully localized.
To leave the Canary Channel, you need to do a clean install of Windows 11.
What's New in Build 27909?
