Skip to the content
The Update Bureau
Windows 11 Windows 11 Insider 26H2 Insider Preview, Experimental Channel
Windows Insider

Build 26340.9767

Build 26340.9767: Windows Insider Experimental Channel, October 2026. Phone controls and internet speed tests in Quick Settings

In short

Experimental Channel Insiders are testing phone controls and internet speed tests in Quick Settings, alongside changes to Magnifier, subscriptions, and several Windows components.

Does it affect you? Applies to: Devices enrolled in the Windows Insider Program in the Experimental Channel.

Build
26340.9767

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

Improvements 4 changes

Magnifier

Gradual rollout

For: Insiders in the Experimental Channel

  • A setting lets you turn the Windows logo key + Plus shortcut for Magnifier on or off. It is on by default.1
    The toggle is in Settings > Accessibility > Magnifier. Magnifier can still be started from Settings when the shortcut is off.

File Explorer

Gradual rollout

For: Insiders in the Experimental Channel

  • When a location takes longer to open, such as a network drive, File Explorer gives a clearer indication that it is loading.2

Narrator

Gradual rollout

For: Insiders using Narrator in the listed languages

  • Narrator supports math reading in more languages: Greek, Hungarian, Indonesian, Norwegian (Bokmål), Polish, Russian, Swedish, and Vietnamese.3

Widgets

Gradual rollout

For: Insiders in the Experimental Channel

  • The Widgets picker uses a standard Windows dialog frame, supports light and dark title bars, and no longer leaves blank space for an icon.4

New features 4 changes

Windows Insider Program

Gradual rollout

For: Insiders in the Experimental Channel

  • You can filter Feature flags by whether they are enabled.5
    The filter is on the Windows Insider Program settings page.

Quick Settings

Gradual rollout 2 items
  • You can use Mobile devices in Quick Settings for quick actions on a connected phone, such as turning on Do Not Disturb, changing the ringer mode, or playing a sound to find it. Android has the most controls; iPhone support starts with a more limited status-focused experience.6
    Capabilities vary by phone platform and device configuration.
  • You can run an internet speed test and see its progress, download speed, upload speed, and ping in Windows without opening a browser.7
    Start the test from the Speed test setting, the Wi-Fi or Cellular flyout, or the network icon's Test internet speed option.

Microsoft 365 subscription in Windows

Gradual rollout

For: Microsoft 365 subscribers with recurring billing turned off

  • Microsoft 365 subscribers whose recurring billing is off can turn it back on directly in Windows.8
    Choose Turn on recurring billing or Set up recurring billing from Settings Home, Accounts, or the Start menu.

Fixes 2 changes

Taskbar

  • The taskbar and other elements that rely on it load after sign-in.9
    Fixes an issue where explorer.exe wouldn't load after logging in.

Windows login

  • Some Insiders no longer see an incorrect message saying their password was wrong on the login screen.10

Technical details

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

Data sheet

Released
2026-10-23
Type
Windows Insider build
VersionBuildChannel
— 26340.9767 Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (10)
  1. 1. We've added a Keyboard shortcut for Magnifier toggle in Settings > Accessibility > Magnifier. It lets you choose whether pressing Windows logo key + Plus (+) launches Magnifier. learn.microsoft.com
  2. 2. Improved progress indication when navigating to locations that take longer to load, such as network drives, making it easier to see that loading is underway. learn.microsoft.com
  3. 3. Narrator now supports additional languages for math reading, including Greek, Hungarian, Indonesian, Norwegian (Bokmål), Polish, Russian, Swedish, and Vietnamese. learn.microsoft.com
  4. 4. The Widgets picker now has a standard Windows dialog frame and supports light and dark title bars. It also removes the blank space previously left for an icon. learn.microsoft.com
  5. 5. We've added the ability to filter Feature flags by enablement state. learn.microsoft.com
  6. 6. With your supported Android phone connected, everyday actions are now just a click away. You can turn Do Not Disturb on before a meeting, change your phone's ringer mode, and play a sound to find your phone nearby. learn.microsoft.com
  7. 7. While the test runs, Quick Settings shows its progress and results, including download speed, upload speed, and ping. learn.microsoft.com
  8. 8. Subscribers who have recurring billing turned off can now turn it back on directly in Windows Settings, without leaving for a separate webpage. learn.microsoft.com
  9. 9. Fixed an issue with the previous update where explorer.exe wouldn't load after logging in, preventing the taskbar and other elements that rely on it from loading. learn.microsoft.com
  10. 10. Fixed an issue with the previous update that was causing some Insiders to erroneously see a message saying their password was wrong on the login screen. learn.microsoft.com
Checked automatically: 8 of 8 checks passed, 10 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 4/5, clarity 5/5, completeness 5/5. 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