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Windows Insider

Build 27783

Build 27783: Windows Insider Experimental Channel, January 2025. Shared files in File Explorer and taskbar preview fix

In short

Adds shared files to File Explorer Home and new zoom controls in Magnifier, alongside fixes for taskbar previews and other issues.

Does it affect you? Applies to: Windows Insiders in the Canary Channel.

Build
27783
Review notes Additional details from the official release notes (3) Read notes
  • What changes Microsoft is not planning to release SDKs for 27xxx-series builds for the time being.
  • In detail On a new Copilot+ PC joining Canary from Dev, Release Preview, or retail, Windows Hello PIN and biometrics are lost for sign-in, with error 0xd0000225. The user should be able to recreate the PIN by selecting “Set up my PIN.”
  • What changes The build fixes MTSC.exe for Remote Desktop failing on the previous build with error 0x80080005.

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

Fixes 8 changes

Taskbar & System Tray

For: Everyone in the Canary Channel

  • Taskbar preview windows display when you hover over open apps.1

Input

For: Pinyin IME users

  • Switching between windows no longer unexpectedly changes Pinyin IME from Chinese to English.2
    The issue could occur when switching windows with ALT + Tab.

Windowing

  • App windows no longer unexpectedly freeze for some people when switching between certain types of apps.3
    The issue could occur when using ALT + Tab.

Graphics

For: Some people opening Graphics settings

  • Settings no longer crashes for some people when they open System > Display > Graphics.4

Remote Desktop

2 items
  • Remote Desktop no longer fails to start with error 0x80080005.5
    Fixes an issue causing MTSC.exe to fail on the previous build.
  • Remote Desktop no longer has significant display or rendering issues when connecting to certain other computers.6

Other

2 items
  • A memory leak that could cause performance issues over time is fixed.7
    Fixes an explorer.exe memory leak in recent Canary Channel builds.
  • The shutdown command with restart and firmware options works again.8
    Fixes an issue with the shutdown /r/ /fw command.

New features 3 changes

File Explorer Home

For: Insiders signed in with a Microsoft account; commercial users signed in with a Microsoft Entra ID account

  • A Shared tab in File Explorer Home gives you access to files shared with your Microsoft account. Commercial users signed in with a Microsoft Entra ID account can also see files they have shared with others.9

Magnifier

2 items

For: Magnifier users

  • Press Ctrl + Alt + Minus to switch between your current zoom level and 1X zoom.10
  • New buttons let you reset zoom to fit the screen or return to your last or preferred magnification.11

Improvement 1 change

File Explorer Home

For: Insiders using File Explorer Home

  • Recent, Favorites, and Shared can show more file types, including files recently opened or edited in Designer, Loop, Power BI, and Forms.12

Technical details

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

Data sheet

Released
2025-01-29
Type
Windows Insider build
VersionBuildChannel
— 27783 Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (12)
  1. 1. Fixed an issue which was causing the taskbar preview windows to not display sometimes when hovering over open apps in the taskbar. blogs.windows.com
  2. 2. Fixed an issue for Pinyin IME users, where switching between windows (like with ALT + Tab) may unexpectedly switch the IME from Chinese to English. blogs.windows.com
  3. 3. Fixed an underlying issue which could lead to unexpected app window freezes for some people when using ALT + Tab between certain types of apps. blogs.windows.com
  4. 4. Fixed an issue causing Settings to crash when going to Settings > System > Display > Graphics for some people. blogs.windows.com
  5. 5. Fixed an issue causing MTSC.exe for Remote Desktop to fail on the previous build with error 0x80080005. blogs.windows.com
  6. 6. Fixed an issue which was causing Remote Desktop to show significant display / rendering issues when connecting to certain other computers. blogs.windows.com
  7. 7. Fixed an underlying issue which was causing an explorer.exe memory leak in recent Canary Channel builds, leading to performance issues over time. blogs.windows.com
  8. 8. Fixed an issue where the shutdown /r/ /fw command wasn’t working sometimes. blogs.windows.com
  9. 9. File Explorer will now provide you with quick access to files that have been shared with you. blogs.windows.com
  10. 10. We’re adding a new keyboard shortcut CTRL + ALT + Minus for Magnifier users to quickly toggle between the current zoom and 1X zoom. blogs.windows.com
  11. 11. we have also added buttons in Magnifier to reset zoom to fit to screen and reset zoom to your last/preferred magnification. blogs.windows.com
  12. 12. You will also be able to view a broader set of file types in their Recent, Favorites, and Shared sections on the homepage. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 12 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