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Windows 11 Windows 11 Insider 26H2 Insider Preview, Experimental Channel
Windows Insider

Build 26300.8376

Build 26300.8376: Windows Insider Experimental Channel, May 2026. More touchpad gestures and clearer File Explorer details

In short

Adds touchpad gesture controls and a K–12 upgrade path to Windows 11 Pro Education, alongside File Explorer changes and reliability fixes for Experimental Channel Insiders.

Does it affect you? Applies to: Devices enrolled in the Experimental Channel. The notes also apply to Dev Channel Insiders who have not yet transitioned to Experimental.

Build
26300.8376

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 5 changes

File Explorer address bar

Gradual rollout

For: Insiders using File Explorer

  • The address bar accepts paths containing double backslashes and quotation marks.1

File Explorer file sizes

Gradual rollout

For: Insiders using File Explorer

  • File sizes in Details view use appropriate units such as KB, MB, or GB instead of showing sizes only in KB.2

File Explorer context menus

Gradual rollout

For: Insiders using File Explorer

  • Keyboard navigation improves in File Explorer context-menu flyouts.3

Administrator Protection

Gradual rollout

For: Insiders using Japanese IME with Administrator Protection enabled

  • Japanese input is more reliable when Administrator Protection is enabled.4
    Improves reliability of Japanese IME usage when Administrator Protection is enabled.

Desktop app icon shortcuts

Gradual rollout

For: Insiders using desktop app icon shortcuts

  • Desktop app icon shortcuts load more reliably.5

Fixes 4 changes

File Explorer address bar

Gradual rollout

For: Insiders using File Explorer

  • The address bar suggestion dropdown closes consistently after you select an item.6

File Explorer rename

Gradual rollout 2 items

For: Insiders using File Explorer

  • Text is no longer repeatedly selected while you rename items in folder views.7
  • Folder views immediately reflect name changes that only alter capitalization, for local and cloud storage.8

WPN

Gradual rollout
  • Notification issues and hangs when launching certain apps caused by a WPN hang in the previous flight are fixed.9

New features 5 changes

Touchpad

Gradual rollout 4 items

For: Insiders with a precision touchpad

  • Touchpad settings let you control the baseline speed of scrolling and zooming gestures.10
  • Automatic scrolling continues without lifting your fingers. Start it by moving your fingers near the touchpad edge while scrolling, or by holding them still and pressing harder; the latter requires supported hardware.11
  • Repeated scrolling increases scroll speed, making it quicker to move through long documents.12
  • You can scroll vertically with one finger, starting from either the left or right side of the touchpad.13

Windows 11 Pro Education upgrade

Gradual rollout

For: Windows Insiders in K–12 education environments

  • K–12 education environments can upgrade Windows 11 Home devices to Windows 11 Pro Education at no additional cost. The upgrade is one-way; returning to Windows Home requires a clean OS reinstall.14
    The process uses Clipupgrade.exe and validates eligibility with a K–12 organization account.

Technical details

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

Data sheet

Released
2026-05-08
Type
Windows Insider build
VersionBuildChannel
26H2 26300.8376 Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (14)
  1. 1. The address bar now supports paths containing double backslashes and quotation marks (for example, C:\Users\user or "C:\Users\user"), improving compatibility with a wider range of inputs. learn.microsoft.com
  2. 2. File sizes in the Details view now display using appropriate units (KB, MB, GB) instead of KB-only, making them easier to understand at a glance. learn.microsoft.com
  3. 3. Improved keyboard navigation of File Explorer context menu in flyouts. learn.microsoft.com
  4. 4. Improved reliability of Japanese IME usage when Administrator Protection is enabled. learn.microsoft.com
  5. 5. Improved reliability of loading desktop app icon shortcuts. learn.microsoft.com
  6. 6. Improved reliability of the Address Bar suggestion dropdown so it now consistently closes after an item is selected. learn.microsoft.com
  7. 7. Fixed an issue where text would be repeatedly selected while renaming items in folder views. learn.microsoft.com
  8. 8. Fixed an issue where updated names (case-only changes) were not immediately reflected in folder views across local and cloud storage. learn.microsoft.com
  9. 9. Fixed a WPN hang in the previous flight, which was leading to notification issues and certain apps hanging on launch. learn.microsoft.com
  10. 10. Scroll / zoom speed: control the baseline speed for these gestures learn.microsoft.com
  11. 11. Automatic scrolling: scrolling continues indefinitely without lifting your fingers. Activate by either bringing your fingers near the edge of the touchpad while scrolling, or holding them still and pressing harder (requires hardware support). learn.microsoft.com
  12. 12. Accelerated scrolling: repeatedly scrolling increases their speed, allowing quick traversal of long documents. learn.microsoft.com
  13. 13. Single-finger scrolling: perform a vertical scroll with a single finger starting from the left or right side of the touchpad. learn.microsoft.com
  14. 14. Windows Insiders in K–12 education environments can now experience a seamless upgrade path from Windows 11 Home to Windows 11 Pro Education edition—at no additional cost. learn.microsoft.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 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