Windows 10 21H1 is now live for insiders

Microsoft released the first public preview of Windows 10 version 21H1 for insiders. Microsoft already detailed how 21H1 would be a modest update just like the last two updates as the company gets ready for the “Sun Valley” Windows 10 design update.

Build 21H1

• Windows Hello multi-camera support to allow users to choose an external camera priority when using high end displays with integrated cameras.
• Windows Defender Application Guard performance improvements including optimizing document opening scenario times.
  • We fixed an issue that causes a one minute or more delay when you open a Microsoft Defender Application Guard (WDAG) Office document. This occurs when you try to open a file using a Universal Naming Convention (UNC) path or Server Message Block (SMB) share link.
  • We improved Robocopy’s performance when copying files that total over 400 MB in size.
  • We fixed an issue that causes a WDAG container to use almost 1 GB of memory (working set) when the container is idle.
• Windows Management Instrumentation (WMI) Group Policy Service (GPSVC) updating performance improvement to support remote work scenarios.
  • We fixed an issue that causes changes that the Active Directory (AD) administrator makes to user or computer group membership to propagate slowly. Although the access token eventually updates, these changes do not appear when the administrator uses gpresult /r or gpresult /h to create a report.

Sun Valley

While this update doesn’t include any glitzy new features or an updated look, an overhaul is coming that is code named Sun Valley. This would include the rounded off corners on the app tiles and more Fluent interface bits.

Until then, Windows Insiders can update their PCs to the latest build by tapping the update button and patiently wait for the Sun Valley update.