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Windows 11 Windows 11 Insider 26H1 Insider Preview, Experimental Channel
Windows Insider

Build 28120.2546

Build 28120.2546: Windows Insider Experimental Channel, July 2026. HID braille support and configurable smart-card session disconnects

In short

Adds Narrator support for HID braille displays, more Voice Access languages, and configurable smart-card disconnects for remote sessions. It also fixes a Settings crash.

Does it affect you? Applies to: Devices enrolled in the Experimental Channel of the Windows Insider Program. Experimental builds can be unstable.

Build
28120.2546
Review notes Additional details from the official release notes (1) Read note
  • Known issues Experimental builds can be unstable and may have limited documentation. Some preview features may not be fully localized, and features roll out gradually to a subset of Insiders before broader availability.

The official sources are linked at the end of the page.

This is a test build for people in the Windows Insider Program. Features in it can change, be removed, or never reach regular Windows releases.

What changes

New features 4 changes

Smart card removal policy

Gradual rollout

For: Administrators managing Azure Virtual Desktop and Windows 365 sessions

  • Administrators can configure remote sessions to disconnect automatically when a redirected smart card is removed.1
    This applies to Azure Virtual Desktop (AVD) and Windows 365 sessions using Microsoft Entra ID (RDS AAD Auth) authentication.

Narrator

Gradual rollout 2 items
  • Narrator connects instantly to HID braille displays. Compatible displays work over USB without additional setup, or wirelessly over Bluetooth after pairing.2
    Compatible displays include Orbit Reader 20, Orbit Slate 340, Freedom Scientific Focus 40, and APH Mantis Q40.
  • HID braille displays can be used over USB during the initial Windows setup, so people who are deaf-blind can set up a PC from the first screen.3
    This applies to the out-of-box experience (OOBE).

Voice Access

Gradual rollout

For: People using Voice Access in these languages

  • Voice Access supports Portuguese (Portugal), Portuguese (Brazil), and Korean (South Korea).4

Improvements 3 changes

Narrator

Gradual rollout

For: People who use braille displays with Narrator

  • Braille input and output options can be customized in Narrator settings.5
    Settings path: Settings > Accessibility > Narrator > Braille.

Settings

Gradual rollout

For: People using gamepad input

  • You can navigate the Bluetooth quick settings page using a gamepad.6

Sounds

Gradual rollout

For: Insiders using dark mode

  • System sounds are improved when Windows is in dark mode.7

Fix 1 change

Settings

Gradual rollout

For: Insiders who use the Graphics page in Settings

  • The Graphics page in Settings no longer crashes after the latest updates.8

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2026-07-21
Type
Windows Insider build
VersionBuildChannel
— 28120.2546 Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (8)
  1. 1. Administrators can now configure Azure Virtual Desktop (AVD) and Windows 365 sessions that use Microsoft Entra ID (RDS AAD Auth) authentication to automatically disconnect when a redirected smart card is removed. learn.microsoft.com
  2. 2. Narrator now supports displays that use the HID standard, an open industry standard for braille displays. If your display supports HID, simply connect it via USB and start reading with no additional setup required. learn.microsoft.com
  3. 3. HID braille displays now work during the initial Windows setup experience (OOBE) over USB, meaning users who are deaf-blind can set up their PC independently right from the first screen. learn.microsoft.com
  4. 4. Voice Access now supports Portuguese (Portugal), Portuguese (Brazil), and Korean (South Korea). learn.microsoft.com
  5. 5. You can customize braille input and output options anytime in Settings > Accessibility > Narrator > Braille. learn.microsoft.com
  6. 6. The Bluetooth quick settings page is now navigable using gamepad input. learn.microsoft.com
  7. 7. Improved system sounds when using Windows in dark mode. learn.microsoft.com
  8. 8. Fixed an issue causing the Graphics page in Settings to crash for Insiders after the latest updates. learn.microsoft.com
Checked automatically: 8 of 8 checks passed, 8 quoted passages
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 4/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake