Windows 11 build 25151.1000

Windows 11 build 25151 is the fourteenth Insider Preview and the eighth available client build of Copper, the 23H2 development semester of Windows as a service. It was released to Windows Insiders in the Dev Channel on 29 June 2022, along with its server counterpart.

Shell
The redesigned Open With dialog box, which initially introduced in build 22563 but later reverted in build 22581, has been re-introduced.
 * This feature is disabled by default, but can be enabled by running the following command with ViveTool from an elevated Command Prompt window:

Miscellaneous

 * The reliability for dismissing the context menu when clicking a tab and then clicking somewhere else in File Explorer has been improved.
 * The Exclusions page in the Windows Security app has been updated so that file paths now make better use of the available space rather than truncating when space is still available.

General

 * Fixed a high hitting Windows Security app crash.
 * Fixed an underlying issue which was causing a crash when trying to delete ports in.
 * Fixed an issue causing printing to not work from UWP apps in recent builds.

File Explorer
Fixed a scaling issue which could result in the tabs being unexpectedly large.

General

 * Some games that use Easy Anti-Cheat may crash or cause the device to bugcheck.
 * Some users may experience a  bugcheck in.

Shell

 * The Mica material and Acrylic blur effect may not render correctly in OS surfaces like the Start menu, Notification Center and other areas.
 * The Up button next to File Explorer address bar may be misaligned with other buttons.
 * This issue will only be encountered if the tabbed browsing feature is enabled on the device.
 * Launching File Explorer when using dark mode may unexpectedly show the body of File Explorer in light mode.
 * For some users, several places that should use Segoe UI Variable, use the regular Segoe UI instead.

Widgets
Widgets preferences, such as temperature units and pinned widgets, may unexpectedly reset to default in some cases.

Live captions

 * Certain apps in full screen (e.g., video players) may prevent live captions from being visible.
 * Certain apps positioned near the top of the screen and closed before live captions is run may re-launch behind the live captions window positioned at top.

Safe mode

 * Quick Settings and date/time clock on the taskbar may be missing due to the Capability Access Manager Service service not running.
 * Clicking Bluetooth & devices and Personalization pages may crash the Settings app due to an overrun of a stack-based buffer.