Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26220.5770 (KB5064093) to the Dev Channel.
Please note the major build number has incremented to Build 26220 with this flight. This build number will only be used for builds flighted to the Dev Channel. Windows 11, version 25H2 will be released as Build 26200 and is now available in the Release Preview Channel.
Changes in Dev Channel builds and updates are documented in two buckets: new features, improvements, and 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, improvements, and fixes rolling out to everyone in the Dev Channel. For more information, see the Reminders section at the bottom of this blog post.
New Copilot+ PC experiences
New Microsoft 365 text action in Click to Do
We are beginning to roll out a new text action in Click to Do!
Convert to table with Excel: Click to Do now recognizes tables so you can work smarter and faster with information you encounter everyday – whether it’s a table you see shared over Teams in a meeting, a school calendar from a photo, or any other document with an embedded table. With tables in Click to Do, you can now highlight any simple table and immediately send to Excel, copy or share it – all without retyping a single cell.
See a table in any application and you can press Win + Click to invoke Click to Do, or Win + Q or right swipe and tap to select the table. Once selected, you’ll see the actions you can take like Convert to table with Excel. Just click, capture and continue.
This is an early preview of this action in Click to Do and table detection may sometimes not work correctly. However, table detection quality will improve over time in subsequent flights to the Dev and Beta Channels.
Tables in Click to Do are rolling out to Windows Insiders on Snapdragon-powered Copilot+ PCs, with support for AMD and Intel-powered Copilot+ PCs coming soon. You’ll need the latest Microsoft Excel application installed on your PC to see Convert to table with Excel and a Microsoft 365 Subscription. This change is not yet rolling out to Windows Insiders in the EEA (European Economic Area).
View Microsoft 365 Profile Cards: Rather than opening Microsoft Outlook or Teams or anywhere to look up someone’s profile, get straight to their info about them thanks to the integration of Live Persona Cards for from Microsoft 365 in Click to Do. See how to contact them or past collaborations without leaving your flow. This new action is available on emails seen in Click to Do. Press Win + Click right on an email and, if it’s part of your work or school’s organization, the profile card is displayed.
You must be signed in to your PC with a work or school account (Entra ID) and have a Microsoft 365 subscription. This change is not yet rolling out to Windows Insiders in the EEA (European Economic Area).
You can learn more about using Click to Do here.
FEEDBACK: Please file feedback in Feedback Hub (WIN + F) under Desktop Environment > Click to Do.
New features gradually being rolled out to the Dev Channel with toggle on*
Get on-screen Braille and text output with Braille viewer
We are adding a new feature in Narrator called Braille viewer that allows you to see on-screen textual and Braille representation of the output shown on a refreshable Braille display. This is a helpful tool for sighted teachers, AT trainers, developers, and testers who do not read Braille or who have limited to no access to a Braille display.
Teachers of Students with Visual Impairments (TVIs) can use Braille viewer to help improve student’s Braille skills or follow along in classroom as the teachers can visually see the textual and Braille representation on the screen while the student reads it on their connected Braille display.
To open Braille viewer, start Narrator using Win + Ctrl + Enter and press Narrator key + Alt + B. A new floating window opens – contents of this window are updated as you continue to use Narrator. The number of Braille cells shown on the viewer depends on the size of your refreshable Braille display. If an 80-cell display is connected, the viewer shows 80 cells. If no display is connected, the viewer shows 40 cells by default. You could also change the display size and position of the viewer using settings menu on the viewer.
NOTE: For Braille viewer to work, make sure Narrator is set up to give Braille output. To download and install Braille package, navigate to Settings > Accessibility > Narrator > Use a Braille display with Narrator.
FEEDBACK: Please file feedback in Feedback Hub (WIN + F) under Accessibility > Narrator.
Changes and Improvements gradually being rolled out to the Dev Channel with toggle on*
[Windows Share]
- You can find apps installed on your PC or apps available in the Microsoft Store directly within the Windows share window using “Find Apps” under the “Share using” section.
[Other]
- The Windows OS version of Direct3D 12 has been updated to match the Agility SDK 1.616.1 package contents.
Fixes gradually being rolled out to the Dev Channel with toggle on*
[Taskbar & System Tray]
- Fixed an issue where clicking the date and time on a secondary monitor might open the flyout on your primary monitor.
- Fixed an issue where if you minimized an app and switched back and forth between desktops, you might end up seeing a duplicate preview thumbnail when hovering over the app in the taskbar.
[Windowing]
- Fixed an issue which was causing explorer.exe to crash when using ALT + Tab for some Insiders in the previous flight.
[Display]
- Fixed an issue where the setting to enable HDR under Settings > System > Display might turn off after you turned it on, blocking you from enabling it.
[Audio]
- Fixed an issue which could result in audio not working a few seconds after casting to a TV.
[Other]
- Fixed an issue which was causing the drivers for certain smart cards to not work in recent flights (showing error 31).
- Fixed a typo in the diskusage help list (diskusage /?).
- Fixed an issue where if you had to enter a PIN for your device to cast from Quick Settings, pressing Enter wouldn’t confirm the PIN.
- Fixed an issue where the tooltip for the “Abort if insufficient memory” setting in Task Manager’s advanced section of settings wasn’t correct.
Known issues
[File Explorer]
- For some users, the Shared section in File Explorer Home may be visible even if there is no content to display.
[Settings]
- We’re investigating reports that Settings > System > Storage > Temporary files is getting stuck when scanning files. We are also investigating previous Windows Installations also not showing.
[Audio]
- [NEW] Some Windows Insiders in the Dev and Beta Channels are experiencing an issue where audio stops working and Device Manager shows one or more devices with a yellow exclamation mark, including “ACPI Audio Compositor” and others. Selecting Properties on these devices will show “Windows cannot load the device driver for this hardware. The driver may be corrupted or missing.” If you are impacted by this issue, you can follow these instructions to get back into a working state:
- Right-click on the device with a yellow exclamation mark in Device Manager and select “Update driver”.
- Choose “Browse my computer for drivers” and then “Let me pick from a list of available drivers on my computer”.
- Select the driver from the list with the most recent date and click “Next”. If you are presented with a list of common hardware types instead of one or more specific drivers, this device is not related to this issue.
- This device should be repaired and no longer show a yellow exclamation mark in Device Manager. If it continues to show a yellow exclamation mark, the yellow exclamation mark is not related to this issue.
- Repeat these steps for each device with a yellow exclamation mark.
[Xbox Controllers]
- Some Insiders are experiencing an issue where using their Xbox Controller via Bluetooth is causing their PC to bugcheck. Here is how to resolve the issue. Open Device Manager by searching for it via the search box on your taskbar. Once Device Manager is open, click on “View” and then “Devices by Driver”. Find the driver named “oemXXX.inf (XboxGameControllerDriver.inf)” where the “XXX” will be a specific number on your PC. Right-click on that driver and click “Uninstall”.
Reminders for Windows Insiders in the Dev Channel
- Windows Insiders in the Dev Channel receive updates based on Windows 11, version 25H2 via an enablement package (Build 26220.xxxx).
- Many features in the Dev Channel 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.
- For Windows Insiders in the Dev Channel 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.
- Please note that some accessibility features may not work with features like Recall and Click to Do while in preview with Windows Insiders.
- Because the Dev and Beta Channels represent parallel development paths from our engineers, there may be cases where features and experiences show up in the Beta Channel first.
- Check out Flight Hub for a complete look at what build is in which Insider channel.
Thanks,
Amanda & Brandon
Source: https://blogs.windows.com/windows-insider/2025/08/29/announcing-windows-11-insider-preview-build-26220-5770-dev-channel/
KB5066383 Enablement Package for 26220 MSU Download: Link here
