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Windows 11 Windows 11 Insider 26H1 Insider Preview, Beta Channel
Windows Insider

Build 28020.2308

Build 28020.2308: Windows Insider Beta Channel, June 2026. Inbox HD Audio driver reliability improves

In short

Improves the reliability of the built-in HD Audio driver for Windows Insiders in the Beta Channel.

Does it affect you? Applies to: Devices enrolled in the Windows Insider Program in the Beta (26H1) Channel.

Build
28020.2308

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

Improvement 1 change

Audio

For: everyone in the Beta (26H1) Channel

  • The built-in HD Audio driver is more reliable.1
    Improves the reliability of the inbox HD Audio driver.

Technical details

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

Data sheet

Released
2026-06-19
Type
Windows Insider build
VersionBuildChannel
— 28020.2308 Beta Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (1)
  1. 1. This update improves the reliability of the inbox HD Audio driver. learn.microsoft.com
Checked automatically: 8 of 8 checks passed, 1 quoted passage
  • 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 5/5, 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