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Windows Insider

Build 26220.7859

Build 26220.7859: Windows Insider Beta Channel, February 2026. Microsoft 365 plan upgrades and a File Explorer window fix

In short

Beta Channel Insiders get a Microsoft 365 plan upgrade option in Settings, plus reliability improvements and a fix for File Explorer windows and tabs jumping to Desktop or Home.

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

Build
26220.7859
Review notes Additional details from the official release notes (1) Read note
  • What to do Turning on the toggle helps Insiders get features sooner. With it off, features will still roll out over time once they are ready.

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

Taskbar

Gradual rollout

For: Beta Channel Insiders with the latest-updates toggle on

  • App icons appear more reliably when the taskbar is set to hide automatically.1
    Improves reliability of showing app icons in the system tray when the taskbar is set to autohide.

Nearby Sharing

Gradual rollout

For: Beta Channel Insiders with the latest-updates toggle on

  • Sending larger files to nearby devices works more reliably with Nearby Sharing.2

Settings

Gradual rollout

For: Beta Channel Insiders with the latest-updates toggle on

  • Configuring options under Settings > Bluetooth & Devices > Wheel is more reliable.3

Fix 1 change

File Explorer

Gradual rollout

For: Beta Channel Insiders with the latest-updates toggle on

  • The issue that could make all open File Explorer windows and tabs jump to Desktop or Home is fixed.4

New feature 1 change

Account Settings

Gradual rollout

For: Microsoft 365 Family subscribers in the Beta Channel

  • Microsoft 365 Family subscribers can find an option to upgrade to a different plan on the Accounts page in Settings. Turning off suggested content in Settings removes the option.5

Technical details

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

Data sheet

Released
2026-02-17
Type
Windows Insider build
VersionBuildChannel
— 26220.7859 Beta Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (5)
  1. 1. Improved reliability of showing app icons in the system tray when the taskbar was set to autohide. blogs.windows.com
  2. 2. Improved the reliability of sending larger files using nearby sharing. blogs.windows.com
  3. 3. Improved reliability of configuring options in Settings > Bluetooth & Devices > Wheel. blogs.windows.com
  4. 4. Addressed an issue where all File Explorer open windows and tabs might unexpectedly jump to Desktop or Home. blogs.windows.com
  5. 5. Microsoft 365 Family subscribers will find an option to upgrade to a different 365 plan on the Accounts page within the Settings app. 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 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