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Announcing Windows 10 Insider Preview Build 20215

Written By published September 16, 2020

Hello Windows Insiders, today we’re releasing Windows 10 Insider Preview Build 20215 to Windows Insiders in the Dev Channel.

Other updates for Insiders

Windows 10 search now supports dark theme

For Insiders who have their system theme set to dark, we are introducing dark theme search results for the Windows 10 search experience on the taskbar. This server-side change is rolling out to all Windows Insiders in the Dev Channel. This change will make the transition between Start and search results easier on the eyes now that both support dark theme. Let us know what you think!

Showing Windows Search in dark theme.

Updates for developers

The Windows SDK is now flighting continuously with the Dev Channel. Whenever a new OS build is flighted to the Dev Channel, the corresponding SDK will also be flighted. You can always install the latest Insider SDK from aka.ms/InsiderSDK. SDK flights will be archived in Flight Hub along with OS flights.

Fixes

  • We fixed an issue that could result in the Windows Security app hanging.
  • We fixed an issue that could result in the Windows Security app crashing when navigating to the Exclusions page when there were a large number of exclusions.
  • We fixed an issue where using a restore point that had been created prior to a Microsoft Edge update to do a system restore could result in Microsoft Edge not launching after the restore was finished.
  • We fixed an issue resulting in the text cursor unexpectedly moving to the beginning of a text field when typing with the Korean IME in certain apps.
  • We fixed an issue impacting Voice Typing reliability.
  • We’ve fixed an issue where on a small subset of devices the Start menu did not reflect when an update was pending restart and scheduled restarts are cancelled.

Known issues

  • We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
  • We’re working on a fix to enable live preview for pinned site tabs.
  • We’re working on enabling the new taskbar experience for existing pinned sites. In the meantime, you can unpin the site from the taskbar, remove it from the edge://apps page, and then re-pin the site.
  • We’re investigating reports of some Office applications crashing or missing after updating to a new build.
  • We’re working on a fix for an issue resulting in Settings crashing for some Insiders when opening Manage Disks and Volumes.
  • We’re investigating reports of some devices experiencing a KMODE_EXCEPTION bugcheck when using certain virtualization technologies.
  • We’re working on a fix for the Linux kernel not being installed when using the wsl --install command in the Windows Subsystem for Linux. For an immediate workaround run wsl --update to get the latest kernel version.
  • We are investigating an issue affecting Windows Subsystem for Linux 2 distros where users can receive the error: “The remote procedure call failed” on startup.
  • We’re investigating a bug where the vEthernet adapter in Windows Subsystem for Linux 2 distros becomes disconnected after a period of use. For full details please follow this Github thread.
  • We’re working on a fix for seeing generic errors when using wsl --install in the Windows Subsystem for Linux.

Important Insider Links

You can check out our Windows Insider Program documentation here, including a list of all the new features and updates released in builds so far. Not seeing any of the features in this build? Check your Windows Insider Settings to make sure you’re in the Dev Channel. Submit feedback here to let us know if things weren’t working the way you expected.

If you want a complete look at what build is in which Insider ring, head over to Flight Hub. Please note, there will be a slight delay between when a build is flighted and when Flight Hub is updated.

Thanks,
BLB