Windows 11 Insider Preview Build 27902: New Features, Fixes & Known Issues

Major Points​

Changes and Improvements​

• The build brings a small set of improvements and fixes to enhance the experience for Insiders.

Fixes​

• File Explorer: Fixed an issue where view changes (such as icon positions and sizes) might not persist, causing desktop icons to reset.
• Camera: Fixed an issue where the Camera app could freeze after switching between front and back cameras on some PCs.

Known Issues​

• IMPORTANT for Copilot+ PCs: Joining Canary Channel from another branch (Dev, Release Preview, or retail) may cause loss of Windows Hello PIN and biometric sign-in, giving error 0xd0000225. You can fix this by recreating your PIN.
• Bugchecks: Some users may experience repeated bugchecks ("KERNEL_SECURITY_CHECK_FAILURE") after upgrading, especially when connecting to VPN.
• Blast from the past: This build temporarily plays the Windows Vista boot sound instead of the Windows 11 boot sound. This will be fixed in a future build.
• Settings: The Settings app might crash when interacting with options under System > Power & Battery, and some apostrophes may display as random characters.
• Remote Desktop: Severe graphical distortion and rendering issues may occur using Remote Desktop on ARM64 PCs.

Notes for Insiders (Reminders)​

• Canary Channel builds are very early platform builds not tied to any specific Windows release; features may come, go, or never ship in retail.
• Features are rolled out to subsets of users first, using "Control Feature Rollout" (CFR) technology.
• Some features may show up in other Insider channels first.
• Some features may not be fully localized; report any language/translation issues you see.
• To leave the Canary Channel, a clean install of Windows 11 will be required.
• A desktop watermark is normal for these pre-release builds.