KB5070316 Update: Fixes for File Explorer, Search, Windows Hello & More

Microsoft has released Windows 11 Insider Preview Build 26220.7344, identified by the update code KB5070316. This build, available to users in the Dev and Beta channels, introduces a range of enhancements and crucial fixes designed to improve the overall user experience. The update focuses on key areas such as File Explorer, Windows Search, and Windows Hello, alongside broader system improvements and new platform capabilities.

This particular update brings a significant focus on refining existing functionalities and addressing user-reported issues. For those participating in the Windows Insider Program, KB5070316 offers a glimpse into the future of Windows 11, incorporating advancements that aim for greater stability, efficiency, and security across the operating system.

File Explorer Enhancements and Fixes

File Explorer has received targeted improvements in KB5070316, addressing specific pain points and streamlining its functionality. One notable fix ensures that the “AI Actions” section in the context menu will no longer appear if no actions are available or enabled. This change helps to reduce clutter and provide a cleaner, more intuitive user interface when interacting with files.

Furthermore, this update resolves a critical issue that prevented File Explorer from accurately searching certain SMB (Server Message Block) shares. This problem, which emerged after recent updates, could significantly hinder users who rely on network-attached storage or shared drives for their work. The successful resolution of this bug restores reliable search capabilities for these essential network resources.

The update also includes a fix for an issue where File Explorer might not search certain SMB shares after recent updates. This is particularly important for users who depend on network shares for their daily tasks, ensuring that their data remains easily discoverable and accessible.

Improvements to Windows Search

Windows Search, a fundamental component of the operating system, has also been refined in this build. KB5070316 addresses a visual glitch where the search window would unexpectedly float above the taskbar. This fix ensures that the search interface behaves predictably and remains anchored correctly, contributing to a more seamless user experience.

This addresses a visual anomaly that could disrupt workflow and create a confusing user experience. The corrected behavior ensures that the search functionality integrates smoothly with the overall desktop environment.

Windows Hello Reliability Boost

For users who rely on biometric authentication, KB5070316 brings important fixes for Windows Hello. The update resolves issues related to fingerprint recognition failures that affected some Insiders in previous builds. This enhancement restores the reliability of fingerprint logins, ensuring a more consistent and secure authentication process.

This restoration of functionality is crucial for users who prefer the convenience and security of Windows Hello, particularly its fingerprint scanning capabilities. The fix aims to provide a dependable biometric login experience.

“Open With” Dialog Enhancements

The “Open With” dialog, a common utility for selecting applications to open specific file types, has seen thoughtful improvements. KB5070316 now ensures that the dialog displays relevant Microsoft Store apps directly when no installed application is associated with a particular file type. This change streamlines the process of finding and installing compatible software, eliminating the need to manually navigate to the Microsoft Store and search for applications.

This enhancement offers a more direct pathway to discovering and acquiring necessary software for opening various file formats. It simplifies the user’s task of finding the right application, thereby improving efficiency.

Unified Update Orchestration Platform

A significant underlying change introduced with KB5070316 is the staged rollout of the Unified Update Orchestration Platform (UOP). This platform is designed to make application updates more consistent and predictable, aiming to reduce interruptions during the update process. Users can monitor the progress of app updates through a new dedicated page within Settings, located at Settings > Apps > App Updates.

The UOP works by allowing applications to register their update mechanisms via APIs. The system then manages scans, downloads, and installations based on user activity and system state, while apps continue to use their own backends for update acquisition but report status back to the platform for user visibility. While currently no apps are leveraging this platform, Microsoft anticipates increased adoption over time, promising a more streamlined update experience for applications in the future.

Quick Machine Recovery Improvements

Quick Machine Recovery (QMR) has been enhanced, with the feature now enabled by default on Windows Professional devices that are not domain-joined. This brings parity with Windows Home users, providing them with the same recovery features. For domain-joined enterprise computers, QMR remains disabled unless explicitly enabled by the organization.

This default enablement on non-domain-joined Pro devices offers enhanced data protection and system resilience for a broader user base. It simplifies recovery processes for many users who may not be part of a managed corporate network.

Windows MIDI Services Integration

KB5070316 also marks the production release of Windows MIDI Services for Insiders in the Dev and Beta channels. This update modernizes the Windows MIDI stack, offering full support for MIDI 1.0 and MIDI 2.0. It includes features such as in-service translation, loopback support, and app-to-app MIDI communication, which are particularly beneficial for musicians and digital audio workstation users.

The App SDK and Tools package, which enables applications to utilize these new MIDI 1.0 and 2.0 features, is available as a separate download. This initiative aims to provide a more robust and feature-rich environment for music creation and audio production on Windows.

Model Context Protocol (MCP) Support

The update introduces public preview of native support for the Model Context Protocol (MCP), an open standard designed to enable AI agents to communicate universally with apps, tools, and services. This integration utilizes a secure Windows on-device registry (ODR) for discoverability and connection management.

This advancement facilitates seamless interaction between AI agents and the operating system’s components. Two built-in agent connectors are included: one for File Explorer, allowing AI agents to manage and retrieve files with user consent, and another for Windows Settings, enabling natural language interaction with system settings on Copilot+ PCs.