Windows 11 build 25140
Fixes only

Windows 11 build 25140 rolls out with fixes in the Dev Channel

The latest preview of Windows 11 (build 25140) brings fixes and several known issues.

  • PCs in the Dev Channel are now receiving Windows 11 build 25140.
  • Build 25140 only brings fixes and new known issues.
  • This flight doesn’t introduce new features.

Microsoft is now rolling out Windows 11 build 25140 for devices enrolled in the Dev Channel of the Windows Insider Program. This is a minor update that only introduces fixes and announces several known issues.

Build 25140 for Windows 11, according to the official logs, updates the Euphemia typeface for better legibility. File Explorer includes some fixes, and so do the Settings apps and Task Manager.

Also, the company is making available the ISO file of Windows 11 to perform an in-place upgrade or clean installation of build 25140.

Windows 11 build 25140 fixes

These are all the fixes and improvements available for Windows 11 in the Dev Channel:

File Explorer

  • Fixed an issue that was leading some people to unexpectedly see error 0x80070026 when copying files from network drives.
  • Fixed an issue where the active tab color didn’t match the command bar below it.
  • Fixed an issue where dragging to rearrange tabs wasn’t working sometimes.
  • Fixed an issue that could cause artifacts in the windows thumbnail preview in the taskbar if File Explorer was maximized and you used WIN + M to minimize it.

Settings

  • If you go to rename a drive label in System > Storage > Disks & Volumes, the current drive name will now be prepopulated in the dialog.

Input

  • Fixed an issue where selecting English (New Zealand) in OOBE unexpectedly led to the Arabic (101) keyboard is selected.
  • Setting language bar hotkeys for switching input directly to a specific non-IME input method should work now.
  • Some languages don’t support text-to-speech. When an admin user wanted to install one of those languages using the new Install-Language CopyToSettings command, some settings such as new user account locale, Input (Keyboard), and UPLL (User Preferred Language List) were not getting updated. This issue has now been fixed.
  • Some languages don’t support text-to-speech. When an admin user tried to install one of those languages using the new Install-Language CopyToSettings command, some settings such as new user account locale, Input (Keyboard), and UPLL (User Preferred Language List) were not getting updated. This issue has now been fixed.
  • Fixed an issue causing Batang, BatangChe, Gungsuh, and GungsuhChe fonts to not render Korean correctly when using Office online apps when these fonts were not locally present on your PC.

Task Manager

  • Fixed a crash that could happen when switching modes in pages other than the Processes page.
  • Small adjustment to the intensity of the colors used in the heatmap on the Processes page.

General fixes

  • Updated this font to improve the legibility and screen rendering of over 200 characters in various sizes. Also added new glyphs to support Unicode 14 characters for the Nattilik language of the Canadian arctic.
  • Fixed an issue where calls to CopyAcceleratorTable and CreateAcceleratorTable would fail if the LPACCEL parameter was the address of an odd-numbered index into an array of ACCEL structs.
  • Fixed an issue with x64 emulation on ARM64 which could result in certain apps crashing on launch with error code 0xc0000409.
  • Fixed an issue causing audio to stop playing in certain apps after a minute.

In addition to these fixes, Microsoft is also pointing out a few known issues. For example, the company is investigating reports that the Mica material and Acrylic blur effect is not rendering correctly on surfaces like the Start menu, Notification Center, and other areas. The Start menu isn’t working for some Insiders and is unexpectedly rebooting instead.

Furthermore, there are some other known issues with File Explorer, Widgets, Live Captions, and Easy Anti-Cheat.

Install Windows 11 build 25140

If you want to download and install the Windows 11 build 25140, you need to enroll your device in the Dev Channel using the “Windows Insider Program” settings from the “Update & Security” section.

Once you enroll the computer in the program, you can download build 25140 from the “Windows Update” settings by clicking the Check for Updates button. However, you will need a device that meets the minimum system requirements to receive the update if you are new to the Windows Insider Program.