Windows 10 build 19645 brings more fixes to Fast Ring Insiders

Laurent Giret

Qualcomm Snapdragon 850 Mobile Compute Platform for Windows 10 PCs

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Microsoft has just announced the release of the Windows 10 preview build 19645 for Fast Ring Insiders, and this is once again a minor update with no new features. The release notes mention a couple of fixes for issues related to hibernation, Taskbar thumbnails, Windows Hello Setup, and more.

You can find the full list of general fixes and known issues below:


  • We’ve fixed an issue where some devices booting from eMMC storage bugchecked when resuming from hibernate.
  • We fixed multiple Japanese and Chinese IME issues that impacted IME mode switching within applications and Windows notification area.
  • We’ve fixed an issue where taskbar preview thumbnails weren’t rendering consistently (showing a blank area).
  • We fixed an issue resulting in the handwriting input panel not appearing in certain text fields after being tapped with a pen.
  • We fixed an issue where resizing a snapped application in tablet mode would minimize the app to the taskbar instead of adjusting the app size.
  • We fixed an issue where Windows Hello Setup would crash if facial recognition was already set up and you chose the Improve Recognition button.
  • We fixed an issue for some users where your PC wouldn’t recognize it when you inserted a smart card (event log showing error 621).

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 fixing an issue for a future Insider Preview build where in Settings > Privacy, the Documents and Downloads sections show a broken icon next to their page name (just a rectangle).

In addition to the release of this new build, the Windows Insider team also announced today that the Your Phone app’s audio controls are now rolling out to non-Insiders. This feature let you control music playback from popular Android apps like Spotify and Google Play Music right from Windows 10 PC. You can learn more about it in our separate post.