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

Build 26300.8346

Build 26300.8346: Windows Insider Experimental Channel, May 2026. Quieter Widgets defaults and precise Magnifier zoom

In short

Build 26300.8346 for Dev Channel Insiders tests quieter Widgets defaults, a refreshed Run dialog, and more precise Magnifier zoom, alongside File Explorer and Feedback Hub changes.

Does it affect you? Applies to: Windows Insiders in the Dev Channel. The release notes use the Experimental Channel label during the transition, and Dev Channel Insiders may not yet have transitioned.

Build
26300.8346
Review notes Additional details from the official release notes (2) Read notes
  • What changes Open on hover is disabled by default for Widgets; the release notes do not say the feature was removed.
  • In detail The Feature flags issue is marked fixed: the new WIP experience may be incorrectly marked as current, but changing the state and applying changes works as expected.

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 8 changes

Widgets

Gradual rollout

For: Dev Channel Insiders

  • Widgets is quieter by default: it no longer opens on hover or shows taskbar badges by default, opens to the Widgets experience on first launch, and limits taskbar alerts until you open and engage with Widgets.1
    Taskbar badging can be turned back on in Widgets settings.

File Explorer

Gradual rollout

For: Dev Channel Insiders

  • File thumbnails in Recommended on the Home page look sharper and are easier to read.2

Storage

Gradual rollout

For: Dev Channel Insiders

  • When creating a Dev Drive or changing volume sizes in Settings, you can specify the size in GB instead of only MB.3
    Volume size controls are under Settings > System > Storage.

Feedback Hub

Gradual rollout 4 items

For: Dev Channel Insiders

  • Feedback Hub version 2.2604.301.0 has generally improved reliability.4
  • Feedback Hub has design, accessibility, and localization tweaks.5
  • Collection titles and Official responses are automatically translated in top languages.6
  • The file upload limit when submitting feedback is back up to 500 MB.7

Task Scheduler

For: Dev Channel Insiders

  • Task list column width adjustments are saved between sessions.8
    Column widths persist in task list view across sessions.

Fixes 5 changes

File Explorer

Gradual rollout 2 items

For: Dev Channel Insiders

  • The Home page no longer shows a grey flash on load or unexpectedly scrolls to the top in certain cases.9
  • OneDrive files no longer appear duplicated in Favorites in some cases.10

Feedback Hub

Gradual rollout

For: Dev Channel Insiders

  • Upvote and comment counts for feedback are more accurate.11

Event Viewer

For: Dev Channel Insiders

  • A large number of APISet events should no longer appear after this build.12

Task Manager

For: Dev Channel Insiders using virtual machines

  • After a virtual machine resumes from hibernation, the Performance page no longer sometimes shows unrealistically high CPU speeds.13
    Fixes CPU speed display accuracy for VMs after resume from hibernate.

New features 4 changes

Run dialog

Gradual rollout

For: Experimental Channel Insiders

  • An opt-in refreshed Run dialog has updated visuals, a cleaner interface, and controls for managing the experience in Settings.14
    Enable it at Settings > System > Advanced by turning on the new Run dialog option.

Windows Share

Gradual rollout
  • AAD users can discover and install suggested apps in the ShareSheet without leaving the sharing flow, and can turn promotional app recommendations on or off.15
    The app suggestion experience, previously available only to MSA users, now extends to AAD accounts.

Windows Magnifier

Gradual rollout

For: Dev Channel Insiders

  • You can enter an exact zoom percentage in the Magnifier toolbar and choose preset zoom steps in Settings.16
    Preset increments are 5%, 10%, 25%, 50%, 100%, 150%, 200%, and 400%.

Feedback Hub

Gradual rollout

For: Dev Channel Insiders using Feedback Hub in a non-English language

  • The Community feedback section in non-English languages lets you switch to an English view.17

Technical details

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

Data sheet

Released
2026-05-01
Type
Windows Insider build
VersionBuildChannel
26H2 26300.8346 Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (17)
  1. 1. These changes include: - Disabling Open on hover by default - Turning off taskbar badging by default - Opening to widgets experience on first launch - Limiting taskbar alerts until you choose to open and engage with the Widgets experience learn.microsoft.com
  2. 2. We’ve sharpened file thumbnails in the Recommended section on the Home page so they’re crisper and easier to read. learn.microsoft.com
  3. 3. In the latest Insider builds, we’ve updated the dialog when creating a Dev Drive to now support specifying the size in GB instead of only MB. learn.microsoft.com
  4. 4. Generally improved reliability. learn.microsoft.com
  5. 5. More tweaks to improve general design fit and finish, accessibility, and localization. learn.microsoft.com
  6. 6. Collection titles and Official responses now will be automatically translated in top languages. learn.microsoft.com
  7. 7. The file upload limit when submitting feedback is back up to 500 MB. learn.microsoft.com
  8. 8. Task Scheduler will now persist column width adjustments in task list view across sessions. learn.microsoft.com
  9. 9. We’ve eliminated a grey flash on load and unexpected scrolling to the top on the Home page in certain cases. learn.microsoft.com
  10. 10. We’ve cleaned up the Favorites section, so OneDrive files no longer appear duplicated in some cases. learn.microsoft.com
  11. 11. Improved upvote and comment count accuracy for feedback. learn.microsoft.com
  12. 12. If you were seeing a large number of APISet events in Event Viewer after the latest Insider builds, that should no longer occur after today’s flight. learn.microsoft.com
  13. 13. Fixed accuracy of CPU speed display on the Performance page of Task Manager for VMs after resume from hibernate, so it doesn’t sometimes show unexpectedly high unrealistic numbers. learn.microsoft.com
  14. 14. The refreshed Run dialog is currently available as an opt-in experience for Windows Insiders on the Experimental channel, where you can enable it by going to Settings > System > Advanced and turning on the new Run dialog option. learn.microsoft.com
  15. 15. The Windows ShareSheet just got smarter for AAD users. You can now discover and install relevant apps right where you share - no need to jump to the Microsoft Store or interrupt your flow. learn.microsoft.com
  16. 16. Magnifier now gives you more control over how you zoom. You can type an exact zoom percentage directly in the magnifier toolbar to land on precisely the level you need. learn.microsoft.com
  17. 17. The Community feedback section for non-English now allows you to switch view to English if you’d prefer. learn.microsoft.com
Checked automatically: 8 of 8 checks passed, 17 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 3/5, clarity 4/5, completeness 3/5. 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