KB5077232 Windows 11 Insider Dev build 26300.7877 (25H2)

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26300.7877 (KB5077232) to the Dev Channel.

Changes in Dev Channel builds and updates are documented in two buckets: new features, and improvements (including notable fixes) that are being gradually rolled out for Insiders who have turned on the toggle to get the latest updates as they are available (via Settings > Windows Update*) and then new features, and improvements (including notable fixes) rolling out to everyone in the Dev Channel. For more information, see the Reminders section at the bottom of this blog.

Changes and Improvements gradually being rolled out with toggle on*

When right clicking on a .exe, .bat, or .cmd file, the context menu’s “Open” verb will now match the icon associated with the file’s default app.

The context menu’s “Open” verb matches the icon in the default app.

Feedback: Share your thoughts in Feedback Hub (WIN + F) under File Folders and Online Storage > File Explorer.

[Settings]

Device Cards:
- Previously released to WIP channels June 2025, the ‘Device info’ Card on the Settings Home page has been refined based on early learnings. This update simplifies key device specifications and improves consistency across the end to end flow from the Home Card to the Settings > System > About page, making information easier to scan and understand. This consumer experience is currently rolling out to Insiders in the United States.
- A version of the Device info Card intended for enterprise users on IT managed devices continues to be available.

Device card with simplified device specifications.

In Settings > System > About, based on early customer feedback, key device hardware details are once again prominently displayed at the top of the page, making it easy to understand your device at a glance. The Device information section now brings together additional system details such as graphics and storage information in a single location, with easy copy/paste support to simplify sharing or support scenarios. Device related frequently asked questions are not currently surfaced as we continue iterating the best way to deliver contextual help across Settings.
Feedback: Share your thoughts in Feedback Hub (WIN + F) under the Settings category.

[Taskbar & System Tray]

We have improved the animations for mousing over app groups on the taskbar.
Improved reliability of showing app icons in the system tray when the taskbar was set to autohide.

[File Explorer]

Addressed an issue where all File Explorer open windows and tabs might unexpectedly jump to Desktop or Home.

Improved the reliability of sending larger files using nearby sharing.

Paint App update rolling out

With Paint version 11.2601.391.0, we’re excited to introduce freeform rotate, a highly requested feature that gives you more control when editing your artwork. You can now rotate shapes, text, and any active selection to any angle. To get started, open Paint and select a shape, text, or selection. When the object is active, use the rotate handle above it to rotate freely in any direction. For more precise control, you can also choose Custom rotate from the Rotate menu and enter a specific angle. Try using freeform rotate in your artwork to adjust elements exactly the way you want and add more flexibility to your creative workflow.

FEEDBACK: Please file feedback in Feedback Hub (WIN + F) under Apps > Paint.

Reminders for Windows Insiders in the Dev Channel

Updates are based on Windows 11, version 25H2 via an enablement package (Build 26300.7877).
Many features are rolled out using Controlled Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
The desktop watermark shown at the lower right corner of the desktop is normal for Windows Insider pre-release builds.
For Windows Insiders who want to be the first to get features gradually rolled out to you, you can turn ON the toggle to get the latest updates as they are available via Settings > Windows Update*. Over time, we will increase the rollouts of features to everyone with the toggle turned on. Should you keep this toggle off, new features will gradually be rolled out to your PC over time once they are ready.
Features and experiences included in these builds may never get released as we try out different concepts and get feedback. Features may change over time, be removed, or replaced and never get released beyond Windows Insiders. Some of these features and experiences could show up in future Windows releases when they’re ready.
Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.
Check out Flight Hub for a complete look at what build is in which Insider channel.