Microsoft has pushed a new Windows 11 Insider Preview build to the Experimental (26H1) channel today. Build 28120.2546 brings a focused set of updates targeting enterprise security, accessibility improvements for visually impaired users, and quality-of-life tweaks for power users. While the Experimental channel typically serves as a testing ground for features destined for the upcoming 26H1 release, this build focuses on refining existing functionality rather than introducing major new capabilities.
Here is what you need to know about the changes included in this update, along with what they mean for your daily workflow.
#1 Smart Card Removal Policy for Remote Sessions
For organizations relying on cloud-based desktops, security compliance is a constant priority. This build extends smart card removal policy enforcement to Microsoft Entra ID authenticated sessions. Administrators managing Azure Virtual Desktop (AVD) or Windows 365 environments can now configure sessions to automatically disconnect when a redirected smart card is removed.
This change specifically targets remote desktop sessions using RDS AAD Auth. In practice, this means that if a user walks away from their workstation while their smart card is still logged in, the session will terminate automatically. This helps enterprises meet strict security and compliance requirements by ensuring that unattended remote sessions do not remain accessible. Previously, this policy was largely limited to traditional on-premises Remote Desktop Services, leaving a gap in security posture for hybrid and fully cloud-deployed workforces.
#2 Instant Braille Display Support in Narrator
Accessibility remains a core pillar of Windows development, and this update significantly streamlines the setup process for refreshable braille displays. Narrator now supports displays that utilize the HID (Human Interface Device) standard, an open industry specification for input devices that has been widely adopted by hardware manufacturers.
If your braille display supports HID, you can simply connect it via USB and begin using it immediately without additional drivers or configuration. For wireless setups, you can pair HID-compatible displays through Settings > Bluetooth & devices just like any other peripheral. Microsoft has confirmed compatibility with several popular models, including the Orbit Reader 20, Orbit Slate 340, Freedom Scientific Focus 40, and APH Mantis Q40.
A notable addition is that HID braille displays now function during the initial Windows setup experience (OOBE) over USB. This allows deaf-blind users to configure their PCs independently from the very first screen, removing a significant barrier that previously required assistance or third-party workarounds. Users can customize braille input and output options anytime in Settings > Accessibility > Narrator > Braille to tailor the experience to their specific needs.
#3 Voice Access Expands Language Support
Voice Access, the built-in speech recognition tool that allows users to control Windows using voice commands, now supports three new languages. Users in Portugal, Brazil, and South Korea can now utilize the feature in Portuguese (Portugal), Portuguese (Brazil), and Korean (South Korea) respectively.
This expansion broadens the accessibility options for non-English speaking users, providing a native experience for voice-driven navigation and command execution. The feature remains available for those who prefer to control their devices hands-free or have mobility limitations. Voice Access continues to operate entirely offline, ensuring that sensitive speech data never leaves the device.
#4 Settings and System Sound Tweaks
Quality-of-life improvements continue to trickle into the Experimental channel. The Bluetooth quick settings page in the Settings app is now fully navigable using gamepad input, offering an alternative control method for users who prefer console-style navigation or have limited mobility. This aligns with Microsoft’s broader push to make Windows more accessible via Xbox controllers and other input devices.
Additionally, Microsoft has addressed a stability issue that caused the Graphics page in Settings to crash for some Insiders following previous updates. Users who experienced unexpected closures when accessing display or GPU settings should find this resolved. The update also includes refined system sounds for Windows in dark mode, ensuring audio feedback aligns better with the visual theme and reducing jarring contrasts in low-light environments.
What This Means for You
For most Windows Insiders, this build represents a stability-focused update rather than a feature-heavy release. The smart card policy change is highly relevant for IT administrators managing secure remote workforces, while the Narrator braille improvements directly impact users relying on assistive technologies. If you are not actively testing enterprise features or accessibility tools, the changes may go largely unnoticed, but they contribute to the overall polish of the operating system. The Experimental channel is designed for early adopters who want to preview the next major Windows 11 update before it rolls out to the general public.
How to Get It
To download and install Build 28120.2546, you must be enrolled in the Windows Insider Program and switched to the Experimental (26H1) channel. You can navigate to Settings > Windows Insider Program and select the Experimental channel to receive this preview. Remember that experimental builds are intended for testing and may contain bugs or instability, so it is advisable to back up important data before installing. Full release notes are available on the Windows Insider Documentation Hub.
Source: Windows Blog
Build details:
- build 28120.2546
Over to you: Are you using the Experimental channel to test 26H1 features, or do you prefer waiting for the stable release?
