Build 29639.1000: Windows Insider Experimental Channel, July 2026. Longer update pauses, gamepad settings, and smart-card disconnects

Experimental Channel build 29639.1000 gradually adds repeatable update-pause extensions, gamepad navigation for Bluetooth settings, and smart-card removal controls for remote sessions.

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

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 3 changes

Windows Update

Gradual rollout

For: Insiders in the Experimental Channel

You can extend update pauses as many times as you need.¹

Settings

Gradual rollout

For: Insiders in the Experimental Channel

You can navigate the Bluetooth quick settings page using a gamepad.²

Smart card removal policy

Gradual rollout

For: Administrators managing Azure Virtual Desktop or Windows 365 sessions

Administrators can set Azure Virtual Desktop and Windows 365 sessions to disconnect automatically when a redirected smart card is removed.³
Applies to sessions using Microsoft Entra ID (RDS AAD Auth) authentication.

Technical details

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

Data sheet

Released: 2026-07-31
Type: Windows Insider build

Version	Build	Channel
—	29639.1000	Experimental Channel

Security

No vulnerabilities are listed for this update.

Sources

Windows Insider release notes

Updated Oct 26, 2026

Cited passages from Microsoft's official notes (3)

1. We're adding the ability to extend update pauses as many times as you need. learn.microsoft.com
2. The Bluetooth quick settings page is now navigable using gamepad input. learn.microsoft.com
3. Administrators can now configure Azure Virtual Desktop (AVD) and Windows 365 sessions that use Microsoft Entra ID (RDS AAD Auth) authentication to automatically disconnect when a redirected smart card is removed. learn.microsoft.com

Checked automatically: 8 of 8 checks passed, 3 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 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