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Windows Insider

Build 26220.8474

Build 26220.8474: Windows Insider Beta Channel, May 2026. Spanish and French dictation, plus a Recycle Bin Properties fix

In short

Adds Fluid Dictation in Spanish and French, fixes File Explorer Properties, and improves SSDP and DISM reliability. Resetting your PC may still get stuck.

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

Build
26220.8474
Review notes Additional details from the official release notes (1) Read note
  • Known issues Resetting your PC may get stuck. Microsoft says to choose cloud download (Cloud PBR) instead of local to complete the reset successfully.

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

Improvements 3 changes

Windows Insider channel movement

For: Beta Channel Insiders

  • The move to the new Beta experience begins for Beta Channel users.1

Simple Service Discovery Protocol (SSDP)

For: everyone in the Beta Channel

  • SSDP notifications are more reliable, helping prevent the service from becoming unresponsive.2

DISM

For: everyone in the Beta Channel

  • Running the DISM restore-health command is more reliable.3
    Applies to dism /online /cleanup-image /restorehealth.

Fix 1 change

File Explorer

For: everyone in the Beta Channel

  • Properties opens correctly for the Recycle Bin and in some other scenarios.4

New feature 1 change

Voice access and Voice typing

For: Windows Insiders using Spanish or French voice dictation

  • Fluid Dictation is available in Spanish and French. It corrects grammar, punctuation, and filler words as you speak, reducing the need for manual editing.5

Technical details

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

Data sheet

Released
2026-05-15
Type
Windows Insider build
VersionBuildChannel
— 26220.8474 Beta Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (5)
  1. 1. we will begin moving users in the Beta Channel to the new Beta experience. learn.microsoft.com
  2. 2. This update improves the reliability of Simple Service Discovery Protocol (SSDP) notifications to help prevent the service from becoming unresponsive. learn.microsoft.com
  3. 3. Improved reliability of running dism /online /cleanup-image /restorehealth command. learn.microsoft.com
  4. 4. Fixed an issue in the previous flight where Properties wasn’t invoking correctly for the Recycle bin and some other scenarios. learn.microsoft.com
  5. 5. Fluid Dictation is now available in Spanish & French for Windows Insiders! It makes voice-based dictation smoother and smarter by automatically correcting grammar, punctuation, and filler words as you speak learn.microsoft.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 5/5, 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