Windows 11 build 25179

Windows 11 build 25179 is the nineteenth Insider Preview and the thirteenth available client build of Copper, the 23H1 development semester of Windows as a service. It was released to Windows Insiders in the Dev Channel on 10 August 2022, along with its server counterpart.
== New features and changes ==
=== File Explorer ===
* The tabbed browsing feature in File Explorer, which re-introduced in build 25136, has been rolled out to all users.
* The updated layout of the left navigation pane, which introduced in build 25136, has been rolled out to all users.
* The search results page has been updated.
* An icon has been added next to the Mount option in the right-click menu for certain disc image files.
=== Settings ===
* The spelling dictionary has been updated to use a language-neutral word list that will sync across all devices.
** This feature can be toggled via Accounts > Windows backup > Remember my preferences > Language preferences.
* Starting with this build, user's preferred state for the Suggested Actions setting under the Clipboard page will persist upgrade going forward.
* The alignment of the "Scan for phone" button displayed in the Sign-In Options page under Dynamic Lock when the phone failed to connect has been improved.
=== Boot environment ===
A new function HviGetPartitionIsolationType was added. This gets some data from currently undocumented Hyper-V specific CPUID calls, and if the running system isn't a Hyper-V VM, or this new feature isn't present, returns zero. If this function returns non-zero:
* ExFAT, CDFS and UDF filesystems, and PXE servers, are inaccessible during boot.
* The legacy boot-time revocation list, boot.stl, is not loaded from disk (but is loaded from UEFI variable if present).
* Boot-time fonts aren't loaded.
* The VMBus driver uses a different EFI boot services protocol.
=== Miscellaneous ===
* The Tamil Anjal keyboard for the Tamil language has been added.
** This feature is only available to a subset of users.
* The key repeat rate for the traditional and touch keyboard layout as well as the default touch keyboard layout has been changed to 20 keys per second.
* The default duration captured by powercfg -sleepstudy has been changed from 3 to 7 days.
* The reliability of media controls in Quick Settings has been improved to not load old media that is no longer in use.
* The date/time recognition for existing supported locales when using Suggested Actions has been improved.
=== Bugfixes ===
==== General ====
* Fixed an issue causing hangs and crashes in apps (like Excel) when attempting to print.
* Fixed a few issues impacting explorer.exe reliability.
* Fixed an issue causing one of the characters in the bugcheck text to not display correctly (as a box) when the display language was set to Chinese.
* Fixed an issue causing app install failures with the 0x80080204 error.
==== Widgets ====
Fixed the issue causing Widgets preferences (temperature units and pinned widgets) to unexpectedly get reset to default.
==== Shell ====
* Fixed an issue where the min / max / close button might not be visible in File Explorer when using a contrast theme.
* Fixed an issue where when resizing certain app windows near the edge of the screen when using mixed DPI monitors might unexpectedly cause the window to jump and shrink.
==== Input ====
* Fixed a sporadic crash impacting reliability of the input switcher.
* Fixed an issue where when Suggested Actions was enabled, if users copied multiple items in a row to the clipboard history, some of the items might not display after is pressed.
==== Settings ====
Fixed an issue which was causing Settings to crash on launch sometimes.
== Bugs and quirks ==
=== General ===
* Certain devices with low disk space may be unable to update to this build with the 0x80070001 error in Windows Update.
** Freeing up 24 GB disk space or higher may solve this issue.
* Certain devices with Xbox Dev Kit installed may experience repeated explorer.exe crashes after attempting to access certain folders on Windows.
* Some games that use Easy Anti-Cheat may crash or cause the device to bugcheck.
* The audio may stop working in certain cases.
* Several apps may crash on launch in certain cases.
* Users may experience decrease in FPS when playing certain games due to the wrong graphics card being used.
=== Virtualization ===
* Users may experience a UNSUPPORTED_PROCESSOR bugcheck when booting Windows in VMware Workstation 16 on a Hyper-V enabled host with 2 or more cores allocated.
* The system may fail to boot in VMware with attached network adapters.
=== File Explorer ===
* The Up button next to the address bar may be misaligned with other buttons.
* The left-half of the title bar may not be draggable via mouse or touch.
* The Home, Documents, Pictures and other folders may duplicate in the navigation pane or appear on the desktop.
* The color of the search box background may be the opposite color of the current color mode.
* The key may not work on files.
=== Shell ===
* The taskbar may not be able to display if File Explorer is maximized and the taskbar is set to auto-hide.
* On some locales, the default font used in several UI elements (such as the date and time on the taskbar) may change to regular Segoe UI instead of Segoe UI Variable.
=== Widgets ===
* The Notification badge number may appear misaligned on the taskbar.
* The Notification banner for some badging may not appear in the Widgets board in some cases.
=== Print ===
The lines may not be included when printing tables from certain apps.
=== 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 0xc0000409.
== Gallery ==
File:Win11-boot-10x-anim.png|Boot screen
=== French language version ===
25179-frFR-Desktop.png|Desktop
25179-frFR-StartMenu.png|Start menu
25179-frFR-TaskView.png|Task View
25179-frFR-Winver.png|winver
== External links ==
* Official announcement
Category:Copper builds
Category:Windows 11 builds