Windows 10 build 21364 reaches Windows Insider development channel

Microsoft keeps working on the exciting future of Windows 10, and for another week they’ve released a new version on the Windows Insider development channel. This time it is build 21364, the main novelty of which is the ability to run Linux applications with the user interface directly on Windows via WSL.

What’s new in version 21364

Run Linux GUI applications directly on Windows using the first preview of GUI support in Windows Subsystem for Linux (WSL)

The Windows Subsystem for Linux now includes the first preview of Linux GUI application support. This means you’ll be able to run your favorite editors, tools, and apps, as well as develop, test, and run your own Linux apps. This video is a demonstration. For more information, read this article.

Classification of all Microsoft Edge processes in Task Manager

The Windows team worked closely with the Microsoft Edge team to add this functionality to Task Manager. This will help the user to identify the consumption of Edge resources in a dissected way.

Source: Microsoft

The classification is made up of various components such as tabs, browser processes (browser, GPU processes, Crashpad), utility plugins (utility: audio service), etc. In addition, icons have been created for each of the processes to help the user easily identify each of them, including the favicons of the websites visited.

Note: This feature is available for Windows Insiders running the latest version of Microsoft Edge on Dev or Canary channels. Insiders can download the latest version via this link. This feature is being rolled out over time to quickly identify potential issues impacting performance.

“Eco mode” in the task manager

The task manager now has an experimental feature called “Eco Mode”. This allows users to better manage the resources used by different processes. This feature is particularly useful when you see that an application is consuming a lot of resources and you want to limit its consumption so that it gives priority to other applications, improving equipment performance and energy efficiency. .

Source: Microsoft

To activate the “Eco Mode” we must follow the following steps:

Open the task manager. Click on the Processes tab. Right-click on a process or thread. Select the “Eco Mode” option from the pop-up menu. The Status column should now indicate that this process is in “Eco Mode”.

This same process can also be applied from the Details tab.

If “Eco Mode” is displayed in gray, it means that it is a process group. You can expand the process tree to apply this mode to one of the specific threads.

If Microsoft Edge or Chrome show the status of “Eco Mode” even though you haven’t enabled it, it’s because they are using energy efficiency APIs to improve performance, something similar to what does the Task Manager when identifying the Efficiency “Eco” applications. You may see more apps in “Eco Mode” if they use similar techniques.

Note: This feature is gradually being rolled out to some Dev Channel Insiders first.

New keyboard with Japanese layout

Source: Microsoft

A new Japanese (50-on) touchscreen keyboard layout that is very popular in Japan has been added. This allows you to enter Japanese text intuitively without knowing how to compose the characters of the Hiragana syllabary.

Changes and Improvements

Based on the comments received, we are updating the notification that said “It is necessary to correct your account” to replace it with one more representative of what it intends to say: “Click here to subscribe with your account to continue using apps between this device and other devices.your property.When you manually turn the nightlight on or off in Windows 10, the change will happen immediately rather than a slow transition.


We fixed a bug that prevented some USB connected printers from working after updating to Build 21354 and later. Theme-specific splash screens are again available in this release. Fixed a crash of the explorer.exe process identified by insiders in the latest versions. Fixed an issue that caused the ‘About’ page in settings to be blank. Fixed an issue that resulted in corrupted characters in the settings of the latest version. Fixed an issue that could cause Windows Update status displayed in the configuration header to be incorrect. Fixed an issue where the “Manage Disks and Volumes” page of the settings incorrectly displayed hard drives and SSDs. Fixed an issue that sometimes prevented chkdsk from calculating elapsed time correctly. Fixed an issue where part of the text in the UAC dialog box was not displayed correctly. Fixed an issue caused by recent changes to the File Explorer default spacing that resulted in an address bar icon being too close to the side. Fixed an issue that prevented the “New Text Document” button in File Explorer from working. Fixed an issue where File Explorer was not fixed in the taskbar for some Insiders after Windows Restore or Clean Install in latest versions. Fixed an issue where the battery icon in the taskbar would sometimes display at 90% capacity when it should display 100% at a certain scale. Fixed an issue that affected the proper functioning of Windows Hello in recent versions. Fixed an issue where Windows Firewall would display an unexpected error when updating existing rules. Fixed an issue where sihost.exe would sometimes crash when trying to use the “Share” option when right-clicking from an application on Start. Fixed an issue that affected the proper functioning of Windows Search in the last two versions. Please let us know if you continue to experience crashes after this update as there could be another cause. Fixed a bug that caused some Insiders to see the CRITICAL PROCESS DIED message in recent versions. Fixed a bug that could cause some games to crash when using overlays when HDR was enabled. Fixed a bug where some images would not appear in your clipboard history after copying them from a webpage through Edge. Fixed a bug where elements of Japanese text input would sometimes appear cut off when using a text scale greater than 200%. Fixed an issue where, after using a touchpad spacebar gesture to move the cursor, states displayed by the Shift and CTRL keys could become out of sync with actual states. Fixed an issue that prevented ARM64 x64 applications such as Cyberlink PhotoDirector from detecting the presence of C ++ redistributables. Fixed a bug that prevented split screen from working with Auto HDR. Added support for “out-of-process” x64 shell extensions in ARM64. The 3D Viewer and Paint 3D application shortcuts reappear on startup.

Known bugs

We are investigating various reports regarding the update process when installing new versions, which seems to hang longer than expected when installing a new version.
[Noticias e Intereses]. Pressing the ESC key to remove a pop-up menu in the fly-out menu causes us to remove the fly-out menu itself instead.
[Noticias e Intereses]. Sometimes the News & Interests drop-down icon cannot be closed with a pen. We are investigating an issue where search items (including the search bar in File Explorer) do not display correctly with the dark theme. The Windows Camera app is currently violating the default brightness settings. We are working on a fix for WSL users who experienced a slowdown in File Explorer startup time after upgrading to Build 21354 or later.

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