Skip to the content
The Update Bureau
Windows 11 Windows 11 Insider 26H2 Insider Preview, Canary Channel
Windows Insider

Build 27975.984

Build 27975.984: Windows Insider Canary Channel, October 2025. Start menu scrolling and sleep or shutdown problems

In short

Cumulative Update Build 27975.984 for the Canary Channel tests the servicing pipeline and includes no new changes. Known issues include unexpected Start menu scrolling and sleep or shutdown problems.

Does it affect you? Applies to: Devices enrolled in the Canary Channel of the Windows Insider Program.

Build
27975.984

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.

In detail

  • Other Build 27975.984 does not add anything new; it tests the servicing pipeline for Canary Channel builds.1
  • Known issues The new Start menu may unexpectedly scroll to the top. Microsoft is investigating reports that sleep and shutdown are not working correctly for some Insiders after recent Canary builds.2

Technical details

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

Data sheet

Released
2025-10-23
Type
Windows Insider build
VersionBuildChannel
— 27975.984 Canary Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. This update does not include anything new and is designed to test our servicing pipeline for builds in the Canary Channel. blogs.windows.com
  2. 2. Insiders with the new Start menu may experience it unexpectedly scrolling to the top. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 2 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