Windows 11 August 2025 Update: Build 26100.4946 (KB5063878) Release

New Windows 11 Updates – August 2025

As of August 12, 2025, Microsoft has released significant updates for Windows 11, specifically build 26100.4946 (KB5063878) for version 24H2 and build 22631.5768 (KB5063875) for version 23H2. These updates, part of Microsoft’s Patch Tuesday rollout, include new features, improvements, and critical security enhancements.

Highlights of Windows 11 Version 24H2 (Build 26100.4946)

This update introduces advanced AI functionalities, including enhancements to the Recall feature and the Click to Do tool, as well as updates to the Settings app.
Critical system fixes are also included, such as a new Quick Machine Recovery feature and a major redesign of the Black Screen of Death (BSoD).

New AI Features and Functionalities

The KB5063878 update introduces notable improvements to existing capabilities, particularly for users in Europe.

Recall Feature Enhancements

Users can now reset their Recall settings and data by navigating to Settings > Privacy & Security > Recall & Snapshots. A new reset button allows for easy management of stored data.

Reset Recall option / Image: Mauro Huculak

Additionally, the duration for storing snapshots has been reduced from unlimited to 90 days, although users can customize this setting.

Data Export Capability

For users within the European Economic Area (EEA), an export feature has been introduced, allowing users to share Windows Recall snapshots with third-party applications. Upon initial setup, users will be provided with a unique export code, which acts like an encryption key.

Click to Do Updates

The Click to Do feature has been enhanced with AI actions that help users with reading tasks, drafting in Microsoft Word using Copilot, and integrating with Microsoft Teams.

Click to Do Reading Coach / Image: Mauro Huculak

Settings App Improvements

A new AI agent has been incorporated into the Settings app to streamline user experience. The search box has been repositioned, enhancing accessibility and ease of use on both Copilot+ and non-AI devices.

Quick Machine Recovery Implementation

The Quick Machine Recovery (QMR) feature is designed to minimize downtime caused by boot failures. Automatically detecting and resolving boot issues via the Windows Recovery Environment (WinRE) enhances system reliability.

Quick Machine Recovery settings / Image: Mauro Huculak

Redesign of the Black Screen of Death (BSoD)

In a bid to improve user experience during critical failures, the traditional blue screen will now appear as a black screen featuring essential technical information.

Windows 11 Version 23H2 (Build 22631.5768) Improvements

For users on version 23H2, the update KB5063875 focuses on critical security fixes and system enhancements. Here are the highlights:

Updated mobile operator profiles for improved connectivity.
Resolved memory exhaustion issues related to the Resilient File System (ReFS).
Addressed delays in device responsiveness after resuming from hibernation.

Manual Installation Instructions

If you wish to download and install the latest updates, navigate to Windows Update settings, enable the “Get the latest updates as soon as they’re available”, and click on “Check for Updates”.

Alternatively, you can manually apply the updates by visiting the Update Catalog website for KB5063878 and KB5063875.

Update History Overview

For those interested in the update timeline, below is a summary:

Initial Release: Windows 11 24H2 build 26100.4762 on July 10, 2025.
Second Release: Optional Install on July 22, 2025.
Final Release: Windows 11 24H2 build 26100.4946 and 23H2 build 22631.5768, both on August 12, 2025.

Note: This article has been revised with the latest information and corrections as of August 12, 2025.

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