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Windows 11 build 27766 lands in Canary with fixes for File Explorer crashes and more

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The holiday pause in the Windows Insider program is now over, which means it is time to download new preview builds. 27766 is now available in Canary with a few tweaks and fixes, such as patches for File Explorer crashes and "a small set of general improvements."

Here is the changelog:

Changes and Improvements

[General]

  • This update includes a small set of general improvements and fixes that improve the overall experience for Insiders running this build on their PCs.

Fixes

[General]

  • We fixed the issue where if you roll back from Build 27764 to an earlier build (including if the upgrade failed), you would see an “Your organization used App Control for Business to block this app” dialog when attempting to use or install certain third-party apps on your PC due to an incorrect policy being enforced.
  • As of the latest Insider Preview builds in the Canary Channel, the main issues causing Insiders to experience an increase in rollbacks (with error code 0xc190010) when attempting to upgrade have been addressed. As a reminder, 0xc190010 is a generic error code that has multiple root causes, so if you’re continuing to experience issues, please file feedback (WIN + F) to investigate.

[Taskbar & System Tray]

  • Fixed an underlying issue which was causing some Insiders in Canary to experience frequent explorer.exe crashes after they clean installed or reset their PC.

Here is the list of known issues:

[General]

  • [IMPORTANT NOTE FOR COPILOT+ PCs] If you are joining the Canary Channel on a new Copilot+ PC from the Dev Channel, Release Preview Channel or retail, you will lose Windows Hello pin and biometrics to sign into your PC with error 0xd0000225 and error message “Something went wrong, and your PIN isn’t available”. You should be able to re-create your PIN by clicking “Set up my PIN”.
  • We’re working on the fix for an underlying issue causing accent colored window borders to not be not displayed when enabled, shadows around windows not displaying when enabled, and window launching (and other) animations to show even though the setting to show animations is turned off.

You can find the official announcement here.

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