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Windows 11 Windows 11 Insider 25H2 Insider Preview, Beta Channel
Windows Insider

Build 26220.7961

Build 26220.7961: Windows Insider Beta Channel, March 2026. Administrator protection returns and File Explorer adds voice typing

In short

Re-enables Administrator protection and adds voice typing for file renaming, alongside refinements and fixes. These changes are gradually rolling out to Insiders who have turned on the latest-updates toggle.

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

Build
26220.7961

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 2 changes

Sharing

Gradual rollout

For: Insiders who have turned on the latest-updates toggle in the Beta Channel

  • The drag tray uses a smaller peek view, reducing accidental opening and making it easier to dismiss when you interact near the top of the screen.1

File Explorer

Gradual rollout

For: Insiders who have turned on the latest-updates toggle in the Beta Channel

  • Unblocking files downloaded from the internet so you can preview them in File Explorer is more reliable.2

New features 2 changes

Administrator Protection

Gradual rollout

For: Insiders who have turned on the latest-updates toggle in the Beta Channel

  • Administrator protection is being re-enabled to help protect administrator rights while still allowing administrators to perform admin tasks with just-in-time privileges. It is off by default.3
    The feature can be enabled via OMA-URI in Intune or via group policy.

File Explorer

Gradual rollout

For: Insiders who have turned on the latest-updates toggle in the Beta Channel

  • You can use voice typing (Windows key + H) while renaming files.4

Fix 1 change

File Explorer

Gradual rollout

For: Insiders who have turned on the latest-updates toggle in the Beta Channel

  • White flashes no longer appear when opening new File Explorer windows or tabs set to open to This PC, or when resizing File Explorer elements.5

Technical details

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

Data sheet

Released
2026-03-06
Type
Windows Insider build
VersionBuildChannel
— 26220.7961 Beta Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (5)
  1. 1. Based on feedback we’re making some refinements to drag tray, using a smaller peek view to reduce accidental invocation and make it easier to dismiss when interacting near the top of the screen. blogs.windows.com
  2. 2. Improved reliability of unblocking files downloaded from the internet in order to preview them in File Explorer. blogs.windows.com
  3. 3. This feature is OFF by default and can be enabled via OMA-URI in Intune or via group policy. blogs.windows.com
  4. 4. You can now use voice typing (Windows key plus H) when renaming files in File Explorer. blogs.windows.com
  5. 5. Removed white flash when launching new File Explorer windows or tabs when File Explorer was set to open to This PC. Also removed white flashes when resizing elements of File Explorer. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 5 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 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