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Windows 11 Insider Preview Build 25276 Announcement (Dev Channel)

Good evening friends! Microsoft has released a new preview build of Windows 11 25276 for Windows Insider program members using the Dev channel.

Complete build number: 10.0.25276.1000.rs_prerelease.230106-1334.

Innovations

Creating real-time kernel memory dumps

Microsoft has introduced a set of new “Task Manager” features that are designed for developers. With these, users can create real-time kernel memory dumps (LKD) in addition to existing “core dumps” for processes. The purpose of such a dump is to collect data to eliminate the anomalous situation, while the operating system can continue working. This reduces downtime compared to error checking for “non-fatal” but high-impact crashes and freezes. Details about the innovation can be found by this link.

To create a real-time kernel memory dump, go to the “Details” page in the “Task Manager”, right-click on the system process and select “Create live kernel memory dump file”. The dump will be saved in the following directory:

%LocalAppData%\Microsoft\Windows\TaskManager\LiveKernelDumps

You can also go to the Options page in the Task Manager to view or change the settings for real-time kernel memory dumps.

Note. This change is currently not available to all Insiders. The fact is that Microsoft wants to collect feedback from a small group of users before the change becomes available to all Insiders.

Updating the block about cloud storage in “Parameters”

In November 2022, Microsoft introduced a OneDrive cloud storage status block to the Accounts page in Settings. There you can also find information about the data from Microsoft 365 Apps that is stored in your cloud storage. Starting with this build, attachments in Outlook will be counted on the active subscription card.

This change is currently not available to all Insiders in the Dev channel. Engineers note that users may see a storage usage warning, however this will not affect your storage capacity until February 1, 2023. Details about changes to Outlook and OneDrive can be found by this link.

Troubleshooting Network Issues in Help Desk

Disconnecting from the Internet reduces productivity at work and interferes with relaxing at home. To help you get back online, Microsoft has replaced Network Troubleshooter with a tool in the modern Help Desk app. With new APIs that diagnose problems and offer specific recommendations for getting online, the app helps you solve the 30 most common connection problems.

To use the function, you need the “Technical Support” application (aka “Get Help”) version 10.2208.2551.0 or later.

Changes and improvements

  • Are common:
    • Updated the dialog box to report a known application compatibility issue. Now this window is made in the style of Windows 11.
  • Windows Security:
    • Temporarily disabled the updated Windows 11-style dialogs from the Windows Security app (from the firewall). They were introduced in build 25267. After bug fixes, this change will be available to users again.
    • Windows 11 Insider Preview Build 25267 and newer versions in the Pro edition no longer allow you to connect to a remote resource using guest credentials by default, even if the remote server requests guest credentials. This is in line with the enhanced security requirements of the Enterprise and Education editions that were introduced with Windows 10. For more information about this change and configuring insecure guest authentication on a third-party SMB server that only supports guest authentication, see with this documentation.

Fixes

  • Taskbar and system tray:
    • We fixed an issue where switching windows using the thumbnails on the taskbar did not work.
    • Fixed multiple crashes in explorer.exe that affected the stability of the taskbar.
    • When opening a popup window from the taskbar, pressing the Esc key will now return focus to the button that opened the window.
  • Search on the taskbar:
    • Fixed a layout issue in right-to-left languages ​​(such as Arabic).
    • We fixed an issue where the selected taskbar search style was not retained when the operating system was updated. Upgrading to future Windows Insider builds will keep this setting.
  • Conductor:
    • Fixed a crash in explorer.exe that could occur when opening File Explorer and was related to loading items in the Recent section.
  • Voice control:
    • Voice control now works correctly when entering numbers in the Calculator app.
    • Fixed a crash when executing the “left” and “right” commands.
  • Input:
    • We fixed an issue resulting in the “insert text” button not working when using the Pinyin IME in dual pinyin mode.
  • Widgets:
    • We fixed an issue resulting in the Widget Bar stuck in an open invisible state for Insiders in China (and possibly other regions), causing the system to not register mouse clicks on the left side of the screen. If you continue to see the issue, then check for updates in the Microsoft Store.
  • Other:
    • For clarity, when Windows Defender Credential Guard is enabled, when trying to use Remote Desktop with default credentials, it will now explicitly say “Windows Defender Credential Guard does not allow Windows logon credentials. Please enter your credentials.”

Note. Some of the fixes listed above may be included in cumulative updates for release versions of Windows 11.

Known Issues

  • Are common:
    • Some devices will not work with Windows Hello for face authentication. Users are encouraged to use a PIN to log in.
    • [Новое] Some users are taking longer than expected to install the latest Insider builds. The engineers are investigating the problem.
    • [Новое] We are investigating reports that some Insiders are experiencing browser freezes and some other apps after updating to a previous Dev channel build.
  • Task bar:
    • Sometimes the taskbar is cut in half when using the tablet-optimized version. This issue can also be seen on secondary monitors.
  • Search on the taskbar (if new field display options are available):
    • There is an issue where it sometimes fails to display the search icon instead of the search field on the taskbar. As a workaround, it is proposed to select any other option, and then enable the display of the search icon.
  • Task Manager:
    • Some dialog boxes may use the wrong theme if the theme is set in the Task Manager preferences.
    • The content area on the Processes page may flash once when changing the theme in the Task Manager settings.
  • Widgets:
    • In right-to-left languages ​​(such as Arabic), the content of the widget bar animates out of view when switching to the full-screen version of the widget bar.

We wish you a successful update!

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