Windows 11 build 27764

10.0.27764.1000.rs_prerelease.241206-1547
	Build of Selenium
OS family	Windows 11 (NT 10.0)
Version number	10.0
Build number	27764
Build revision	1000
Architecture	AMD64, ARM64
Build lab	rs_prerelease
Compiled on	2024-12-06
Expiration date
Timebomb	2025-09-15 (+283 days)
SKUs
	Home (N, Single Language, China); SE (N); Pro (N, Single Language, China); Pro Education (N); Pro for Workstations (N); Education (N); Enterprise (Evaluation, G, GN, N, N Evaluation); IoT Enterprise (Subscription)
About dialog

Windows 11 build 27764 is a build of Selenium, the 25H2 development semester of Windows as a service. It was released to the Windows Insiders in the Canary Channel on 11 December 2024.

New features and changes[edit | edit source]

Features[edit | edit source]

The following previously introduced features and changes have been gradually rolled out:

When no compatible devices are attached, the Personalization > Dynamic Lighting page in the Settings app will show a placeholder message and Brightness and Effects controls are disabled (initially implemented in build 22635.4435)
New Forward, Backward, Outward and Inward direction options in the Wave effect section, and the Forward direction option in the Gradient effect section under the Personalization > Dynamic Lighting page in the Settings app (initially implemented in build 22635.4435)
Two new shortcuts (skip past links (N) and jump to lists (L)) for Narrator scan mode (initially implemented in build 22635.4510)
The message to inform users to update language files manually when using accessibility features (initially implemented in build 22635.4510)
The ability to show jump lists when right-clicking on apps pinned to the Start menu that have jump lists (previously implemented in build 26252 and can be activated manually by enabling the 32222762 and 47205210 velocity staging keys)
The ability to hide the Chinese and Japanese IME toolbar when apps are in full-screen mode (previously implemented in build 27695 and can be activated manually by enabling the 52303419 velocity staging key)

The following previously introduced features and changes have also been ported to this build, albeit being disabled by default:

The new Share option in the context menu when right-clicking on a recently used files in Start menu's Recommended section for quickly sharing (initially implemented in build 22635.4445 and can be activated manually by enabling the 46493758 velocity staging key)
The new Share button next to recently used items in a jump list for quickly sharing (initially implemented in build 22635.4445 and can be activated manually by enabling the 45738940 and velocity staging key)

Miscellaneous[edit | edit source]

A new "Administrator protection" section has been added under the Account protection page in the Windows Security app for configuring Administrator protection. The section was initially mentioned in a Windows IT Pro Blog article,^[1] although it's not working properly in this build since clicking on the "Administrator protection Settings" link will crash the app with the 0xc000027b exception code in SecHealthUI.exe. It's also disabled by default, but can be activated manually by enabling the 51406324 velocity staging key.

Bugfixes[edit | edit source]

Fixed an issue that was causing the PAGE_FAULT_IN_NONPAGED_AREA in certain cases in builds 27754 and 27758.
Addressed an issue where File Explorer might hang when browsing a folder with lots of media in it.
Fixed an issue that was causing Widgets text on the left-aligned taskbar to overlap the date/time section on secondary monitors.
Fixed an issue where if pointer trails were enabled, the mouse cursor may become invisible with a black box behind it.
Fixed an issue where some HDDs were being incorrectly listed as SSD on Task Manager's Performance page.
Fixed an issue that was resulting in lag and screen tearing on secondary monitors with full screen windows.
Fixed an underlying issue that was leading to Excel sometimes hanging on launch when opening certain files.

Bugs and quirks[edit | edit source]

Enrolling to the Windows Insider Program on a new Copilot+ PC may cause Windows Hello PIN and biometrics to fail with the 0xd0000225 ("Something went wrong, and your PIN isn't available") error.
Users may experience a hang at the boot screen and roll back with the 0xc1900101 error when upgrading to this build.
Text on highlighted items in Microsoft Management Console and some of its snap-ins may have a yellow color.
Certain settings under Advanced tab > Performance in the System Properties Control Panel applet and the "Animation effects" setting under Accessibility > Visual effects in the Settings app may not persist across reboots.