Announcement of Windows 11 Insider Preview Build 26120.3872 (Beta channel)

Announcement of Windows 11 Insider Preview Build 26120.3872 (Beta channel)

Windows Insider Program 11

Microsoft has released a new Windows 11 preview build (version 24H2) numbered 26120.3872 (KB5055640) for Windows Insider Program participants on the Beta channel.

Full build number: 10.0.26100.3872.ge_release_svc_betaflt_prod1.250414-2114.

New Features for Copilot+ PCs

New Text Actions in Click to Do

Practice in Reading Coach. This feature helps improve reading and pronunciation. Simply select text recognized by Click to Do on your screen, choose "Practice in Reading Coach" and read the text aloud. The feature provides feedback and suggestions for improvement. Requires the free Microsoft Reading Coach app from Microsoft Store.

Read with Immersive Reader. Displays recognized text in a distraction-free interface, originally designed for readers with dyslexia/dysgraphia but useful for all ages. Allows text size, spacing, font and background color customization plus text-to-speech, syllable breakdown, and grammar highlighting. The picture dictionary provides visual definitions. Requires the free Microsoft Reading Coach app.

New text actions are available to a limited number of Insiders on Snapdragon-powered Copilot+ PCs. AMD/Intel chip support coming later.

Enhanced Cloud Photo Search for EEA Insiders

Insiders in the European Economic Area (EEA) can now search cloud photos via natural language queries in the taskbar search box (e.g. "European castles" or "summer picnics").

Cloud photos now appear alongside local images in results, with exact keyword matches from cloud file text highlighted.

Rolling out gradually to Snapdragon Copilot+ PC Insiders. AMD/Intel support coming later.

For Insiders with "Get the latest updates" enabled

New Features

Voice Access Improvements

You can now add custom words to Voice Access's vocabulary, improving recognition of difficult/uncommon terms. Available in all supported languages (English, French, German, Spanish, Chinese).

Add words via:

  1. After spelling with "Spell that" or correcting with "Correct that"
  2. Manually with "Add to Vocabulary" command
  3. Directly in Voice Access settings

New Feature Notifications. Voice Access now highlights new features/improvements via a discovery interface accessible from settings.

Voice Access has been added to the Accessibility flyout in the system tray quick actions menu.

Changes and Improvements

  • Enhanced Windows Search:
    Available as preview for 24H2 Insiders in Dev/Beta channels on Copilot+ PCs.
    • Disable cloud content search in Settings > Privacy & Security > Search Permissions (currently taskbar search only - File Explorer coming later).
  • File Explorer:
    • Folders opened outside File Explorer (e.g. from apps/desktop) now default to new tabs when Explorer is already open. Change this in Folder Options > View.
  • Widgets:
    • Testing improved notification settings page for Widgets panel, allowing separate control for feed/dashboard notifications. Limited EEA Insiders only.
  • Windows Security:
    • Now displays Pluton TPM chip manufacturer/version details (if installed) under Device Security > Security Processor Details.
  • Settings:
    • Updated printer rename dialog in Settings > Bluetooth & devices > Printers & scanners to match Windows 11 styling.
  • Other:
    • pnputil /enum-drivers now shows package catalog attributes indicating driver type/certification status.

Fixes

  • Start menu:
    • Fixed crashes when creating folders
    • Fixed keyboard focus not moving to search field after pressing WIN
  • Windows:
    • Fixed incorrect colors in snap layouts top bar making text unreadable
  • Taskbar search:
    • Fixed slow loading (15-20 sec blank window) for some users
  • Input:
    • Fixed voice typing not launching from touch keyboard in narrow Simplified Chinese layout
  • Task Manager:
    • Fixed broken search/filtering in previous build
  • Voice Access:
    • Fixed "working on it" hangs during dictation
  • Other:
    • Fixed third-party screen readers failing in certain scenarios (e.g. browser navigation)
    • Improved early boot UI speed (BitLocker PIN/recovery key screens, boot menu)

For All Users

Fixes

  • General:
    • Fixed Microsoft Store apps (e.g. Spotify) failing to install with error 0×80070032

Known Issues

  • General:
    • [REMINDER] When joining Dev/Beta channels, you'll be offered Windows 11 24H2 Build 26120.3360 first before receiving current build. This two-step update process is temporary.
    • System reset (Settings > System > Recovery) may show build 26100 instead of 26120 - doesn't affect future updates
    • Quick Assist doesn't work for non-admin users
    • Windows Recovery Environment (WinRE) may not work after update
    • Some apps may launch blank - close/reopen to fix
    • [NEW] Windows Sandbox fails with error 0×800705b4 - try reinstalling via Windows Features
  • Login & lock screen:
    • [NEW] Investigating Windows Hello facial recognition failures for some Insiders
  • Recall:
    • [REMINDER] Update Microsoft 365 apps for document recall
    • Some Insiders can't enable auto-snapshots - fix in progress
    • Disabling Recall doesn't yet delete snapshot files
  • Click to Do:
    • [REMINDER] Text actions now use local (not cloud) moderation
    • [REMINDER] Update Photos/Paint apps if object actions missing
    • May fail to launch - retry if needed
    • Temporary image files may remain in C:\Users\{username}\AppData\Local\Temp
    • Investigating incorrect icon on non-Copilot+ PCs
  • Enhanced Search:
    • [REMINDER] Keep Copilot+ PCs plugged in during initial indexing
  • Start menu:
    • [NEW] Investigating profile picture clicks not opening account manager
  • Task Manager:
    • New "CPU Load" column shows 0% for System Idle Process
    • Performance tab CPU graphs use old calculation method

Happy updating!

Source
Announcement of Windows 11 Insider
Microsoft has released a new Windows 11 preview build 26200.5562 (KB5055642) for Windows Insiders in the Dev channel.

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