Skip to the content
The Update Bureau
Windows 11 Windows 11 Insider 24H2 Insider Preview, Beta Channel
Windows Insider

Build 26120.6972

Build 26120.6972: Windows Insider Beta Channel, October 2025. Mobile device controls and File Explorer archive fixes

In short

The Dev and Beta Channel Insider builds add mobile-device settings and Drag Tray controls, and fix File Explorer errors, display problems, and other issues.

Does it affect you? Applies to: Windows Insiders in the Dev Channel and Beta Channel. The Beta build is for devices running Windows 11, version 24H2.

Builds
26120.6972 · 26220.6972

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

Fixes 8 changes

File Explorer

Gradual rollout 2 items

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Extracting large archive files no longer causes File Explorer to show a Catastrophic Error.1
    The issue could occur with archives larger than 1.5 GB and show error 0x8000FFFF.
  • An old white toolbar no longer appears randomly in File Explorer.2

Display and Graphics

Gradual rollout 2 items

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Some videos and games no longer appear unexpectedly red.3
  • Apps and browsers no longer leave parts of their content stuck on screen when other full-screen or maximized apps update in the background.4
    The display issue could be noticeable when scrolling because only parts of a window would update.

Windows Update

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Updates no longer fail to install with error 0x800f0983.5

Outlook

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Outlook no longer hangs when a credentials prompt cannot be brought to the foreground.6

Remote Credential Guard

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Remote Credential Guard scenarios between recent Windows 11 builds and Windows Server 2022 or earlier work again.7

Print preview

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Print preview no longer stops responding in Chromium-based browsers.8

Improvements 3 changes

Game Pass

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Settings updates its Game Pass plan references to reflect the current branding and benefits.9

File Explorer

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • The Folder Options dialog now has a more consistent dark-mode appearance.10

Display and Graphics

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • Very high-resolution monitors are less likely to stutter when apps check which display modes they support.11

New features 3 changes

Mobile Device Settings

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • A new Settings page lets you add and manage mobile devices, including using a device as a connected camera or accessing its files in File Explorer.12
    The page is under Bluetooth & Devices > Mobile Devices.

Accounts

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • The Start menu account control has a shortcut to the benefits page for your Microsoft account.13

Drag Tray

Gradual rollout

For: Insiders in the Dev and Beta Channels with the latest-updates toggle on

  • You can turn Drag Tray on or off in Settings.14
    The setting is under Settings > System > Nearby sharing.

Technical details

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

Data sheet

Released
2025-10-17
Type
Windows Insider build
VersionBuildChannel
— 26120.6972 Beta Channel
— 26220.6972 Dev Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (14)
  1. 1. Fixed an issue which could cause File Explorer to show a Catastrophic Error (0x8000FFFF) when extracting large (1.5gb+) archive files. blogs.windows.com
  2. 2. Fixed an issue which could cause an old white toolbar to randomly appear in File Explorer sometimes. blogs.windows.com
  3. 3. Fixed a recent issue which was causing some videos and games to be unexpectedly red. blogs.windows.com
  4. 4. Fixed an issue where apps and browsers could have partially stuck onscreen content when other maximized / full screen apps were updating in the background. blogs.windows.com
  5. 5. Fixed an issue which could lead to updates failing to install with error 0x800f0983. blogs.windows.com
  6. 6. Fixed a hang which could impact Outlook in recent builds, where if prompted for your credentials, you wouldn’t be able to bring the pop up to the foreground and it would go unresponsive. blogs.windows.com
  7. 7. Fixed an issue which was causing Remote Credential Guard scenarios between the latest Windows 11 builds and Server 2022 (and below) to fail. blogs.windows.com
  8. 8. Fixed an issue which could cause the print preview screen to stop responding in Chromium-based browsers. blogs.windows.com
  9. 9. In this build we have modified references to Game Pass plans in Settings to reflect updated branding and benefits. blogs.windows.com
  10. 10. We’re continuing to make improvements to the dark mode experience in File Explorer. You will now see a consistent dark mode experience in the Folder Options dialog. blogs.windows.com
  11. 11. We’ve improved the performance when apps query monitors for their full list of supported modes. blogs.windows.com
  12. 12. You can now directly add and manage your mobile devices from Settings on your Windows PC by navigating to “Mobile Devices” under the Bluetooth & Devices section. blogs.windows.com
  13. 13. We’ve added a new entry point in the account control on the Start menu that takes you directly to the benefits page on <https://account.microsoft.com/>, making it easier to explore and manage the benefits that come with your Microsoft account. blogs.windows.com
  14. 14. We’ve added the ability to turn Drag Tray on/off from Settings->System->Nearby sharing. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 14 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