Microsoft Windows 10

Last week, Microsoft released Windows 10 Insider Preview Build 21327 (RS_PRERELEASE)to Windows Insiders in the Dev Channel. Today, Microsoft announced the release of Windows 10 Cumulative Update Build 21327.1010 (KB5001277). This update does not include any new feature and is designed to test Microsoft’s servicing pipeline.


News and interests has an updated look!

Today, Microsoft started rolling out a new design that makes it even more delightful to scan and interact with the headlines and stories in your feed. Imagery from articles now shines through with a vibrant and colourful design, making your feed more glanceable, engaging, and beautiful.

There are more updates when you click “See more news”. The new feed experience that opens in the browser has been redesigned to help you catch up with the top headlines at a glance and enjoy a vibrant feed that brings your personalized stories to light. Larger cards can now also show article text, helping you get a sense of a topic before diving in.

Across news and interests and the homepage, Microsoft is also making it easier to share your reaction to the news, with updated emoji graphics so you can respond with a like, love, surprise, anger, and more.

This updated design will start to roll out to Insiders with news and features in the U.S. first. Over time, it’ll roll out to other markets so stay tuned if you do not see these changes immediately.

REMINDER: Microsoft continues to roll out news and interests to Windows Insiders which means it isn’t available to everyone in the Dev Channel just yet.


  • Sharped-eyed Windows Insiders will notice many of the system icons in this build have been updated and now align to the Microsoft Fluent Design style. This build includes a new font Segoe Fluent Icons. Areas of the OS that use the Segoe MDL2 assets such as the Start menu and Settings app will include the new icon designs which have a more rounded and simplified look and feel.
The new Segoe Fluent Icons font includes new icon designs which have a more rounded and simplified look and feel.

  • On ARM64 devices, the default architecture for PowerShell is now x64 rather than x86.


  • Microsoft fixed an issue impacting the reliability of Start and other modern apps in recent flights.
  • Microsoft fixed an issue where a toggled key on the touch keyboard had the wrong background color when you hovered the mouse cursor or pen over it. This change is currently being rolled out to a subset of Insiders at first to help us quickly identify issues that may impact performance and reliability.
  • Microsoft fixed an issue where the KANA input mode in the touch keyboard was not persisted on next launch when using the Japanese 106/109 traditional keyboard layout.
  • Microsoft fixed an issue with the new “Paste as plain text” option in clipboard history where the text was cramped in some languages.
  • Microsoft fixed an issue for specific clipboard content where if you click the first entry in clipboard history would paste something different than what was selected.
  • Microsoft fixed an issue resulting in the emoji panel and IME candidate window drawing partially offscreen sometimes in recent flights.
  • Microsoft fixed an issue that could result in a bug check with IRQL NOT LESS OR EQUAL when installing certain apps.
  • Microsoft fixed an issue from recent flights that could result in login screen and DWM hangs.
  • Microsoft fixed an issue where if your primary monitor uses HDR and your secondary monitors were using SDR, thumbnails for apps in the taskbar on the primary monitor would be black.
  • Microsoft fixed a bug where display changes might unexpectedly cause a window to grow or shrink. This was mostly isolated to systems with monitors set to different scaling factors (DPI).
  • Microsoft fixed an issue in recent flights where your PC might freeze if you rotated it while in tablet mode.
  • Microsoft fixed an issue that could result in lag when using the Xbox Game Bar to record your gameplay on a monitor that was 144Hz or higher.
  • Microsoft fixed an issue in recent builds that could result in stutter when playing games while using multiple monitors.
  • Microsoft fixed an issue leading to erroneous notifications after each upgrade indicating new apps had been added to the Startup Apps section in Settings.
  • Microsoft fixed an issue that could result in upgrades getting stuck at 88%.
  • Microsoft fixed an issue resulting in errors when launching MSIX packaged desktop apps in recent Dev Channel builds.