Microsoft releases Windows 10 Insider build 19631 and ARM64 VHDX

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Microsoft has released today the Windows 10 Insider build 19631 for Windows Insiders in the Fast Ring, which is another minor update with no new features. Highlights include Windows Hello improvements and a fix for an issue preventing devices in connected stand by to wake up after a key press.

You can check out the full list of changes and known issues below:

General changes & improvements

  • We updated the configuration of Windows Hello to make sure it works well with 940nm wavelength cameras.


  • We fixed the issue causing the IIS configuration being set to default after taking a new build.
  • We fixed an issue that could result in a key press not waking up a device from connected standby in certain scenarios.
  • Windows Sandbox WSB files are now case insensitive.
  • We fixed an issue impacting Remote Desktop reliability.

Known issues

  • We’re looking into an issue where some devices booting from eMMC storage may bugcheck when resuming from hibernate.
  • 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).
  • We’re looking into reports that taskbar preview thumbnails aren’t rendering consistently (showing a blank area).

In addition to this new Windows 10 preview build, the Windows Insider team also made ARM64 VHDX available for download, which will allow Insiders with Windows 10 on ARM devices to run the Windows 10 Insider build 19624 as a guest host in Hyper-V. Microsoft previously added in the build 19559 from February the ability to install Hyper-V on Windows 10 on ARM devices such as Microsoft’s Surface Pro X. “We will regularly release updated VHDX downloads for newer Insider Preview builds going forward,” the team said today.

Even though Microsoft held its Build 2020 developer conference this week, there’s still no word about the 20H2 update coming later this year, or the 21H1 update to be released in the first half of 2021. Microsoft shared its plans for the 19H2 update right after the spring last year, so we may have to wait a bit more to get some information about future Windows 10 releases.