Microsoft has started to roll out another Windows 10 Redstone 4 Insider Preview Build for those in the Fast Ring. Windows 10 Insider Preview Build 17107 is probably the first build from Redstone 4 branch to focus completely on bug fixes as it brings only one improvement in the Windows Update behaviour. This new feature will prevent PCs from going to sleep on AC power when not in active use for up to 2 hours to make sure systems are kept up-to-date.

As for those in the Skip Ahead branch, Windows Insider Program’s Dona Sarkar and Brandon LeBlanc wrote that there won’t be any new builds this week coming for the branch. As a reminder, Skip Ahead Insiders have moved on to testing the next version of Windows 10 aka Windows 10 Redstone 5.

Here’s the complete changelog of Windows 10 Preview 17107

"Keeping PCs Up-to-date: In an effort to prevent PCs from becoming out of date, we are introducing a change in behavior to Windows Update that is designed to be more proactive at keeping PCs updated. In RS4, now when Windows Update scans, downloads, and installs on a PC with AC power – it will prevent the PC from going to sleep when it is not in active use, for up to 2 hours when receiving an update in order to give Windows Update more opportunity to succeed. If you are not seeing this new behavior, let us know by sending in feedback via Feedback Hub."

As all the previous builds, today’s Preview Build also brings a list of general fixes along with a few known issues. These issues include:

  • Buttons on Game bar are not centered correctly.
  • Selecting a notification after taking a screenshot or game clip opens the Xbox app’s home screen instead of opening the screenshot or game clip.
  • Post-install at the first user-prompted reboot or shutdown, a small number of devices have experienced a scenario wherein the OS fails to load properly and may enter a reboot loop state. For affected PCs, turning off fast boot may bypass the issue. If not, it is necessary to create a bootable ISO on a USB drive, boot into recovery mode, and this will allow bypass.
  • Tearing a PDF tab in Microsoft Edge will result in a bugcheck (GSOD).

For more details about general fixes, head over to Microsoft.