Preview build Archives

Winsage

January 16, 2026

Announcing Windows 11 Insider Preview Build 26220.7653 (Beta Channel)

Windows 11 Insider Preview Build 26220.7653 (KB5074157) has been released to the Beta Channel. Changes and Improvements: - The "Accounts > Other Users" dialog has been redesigned using the WinUI framework and now supports dark mode. - Copilot prompt suggestions in Click to Do will load instantly, but this change is not available for Insiders in the EEA or China. - Users can now set .webp images as their desktop background. Fixes: - Taskbar autohide issue resolved. - Start menu memory leak fixed and issues with incorrect opening side for Arabic and Hebrew users addressed. - Bluetooth battery level display issue resolved. - Fixed unexpected app behavior in Xbox full-screen experience. - Login screen password icon issue fixed. - Resolved crash in Settings when interacting with audio devices. - Fixed keyboard character repeat delay settings discrepancy. - Addressed clipped text issues in msinfo32 and installation errors with .appinstaller files. - Notepad font display issue corrected. - Fixed explorer.exe hang issue upon logging in. Known Issues: - Some applications may exhibit unexpected behavior in Xbox full-screen experience. - Investigating visibility issues of apps in the system tray for some Insiders. - Addressing display issues on secondary monitors showing black screens. - Working on a fix for Microsoft 365 Copilot prompt box functionality when the app is not running. Reminders: - Updates are based on Windows 11, version 25H2. - Features are rolled out gradually using Controlled Feature Rollout technology. - Features in development may not be released to the public and can evolve or be removed.

Winsage

January 12, 2026

Windows 11 Insider Build 26220.7535 Adds Narrator Copilot Features and Removal Policy

Microsoft has released Windows 11 Insider Preview Build 26220.7535 (KB5072046) to the Dev and Beta Channels, focusing on accessibility enhancements and improvements for managing Copilot features. The update introduces Copilot-powered image descriptions via the Narrator feature, allowing users to generate detailed descriptions of images on all Windows 11 devices. This functionality is available on Copilot+ PCs without cloud data transmission and is also extended to non-Copilot+ systems, though it is currently unavailable in the European Economic Area. Additionally, a new Group Policy option titled Remove Microsoft Copilot App allows administrators to uninstall the Copilot app under specific conditions. The build also includes a refresh of the Windows Spotlight desktop icon and various bug fixes addressing issues in the Start menu, File Explorer, printing dialog, Snipping Tool, and Windows Update. Known issues remain, including interaction problems in the Start menu and crashes in Settings. The features in this build are being rolled out gradually and may change before general release.

Winsage

January 12, 2026

Windows 11 Insider Build 26220.7535 Adds Narrator Copilot Features and Removal Policy

Microsoft has released Windows 11 Insider Preview Build 26220.7535 (KB5072046) for users in the Dev and Beta Channels, aligning both with Windows 11 version 25H2. The update includes accessibility enhancements, streamlined Copilot management, and various bug fixes. Notably, it integrates Copilot with Narrator, allowing users to generate descriptions of images and visual elements. This feature works on both Copilot+ and non-Copilot+ PCs, with image sharing initiated only upon user request, though it is unavailable in the European Economic Area. A new Group Policy option allows administrators to uninstall the Copilot app from managed devices under certain conditions. The update also refreshes the Windows Spotlight desktop icon and addresses several bugs, including issues in the Start menu and File Explorer. Some known issues remain, such as interaction difficulties in the Start menu and crashes in Settings. Features in this build are subject to controlled rollouts and may change before general release.

Winsage

January 12, 2026

Windows 11 File Explorer Lag: Legacy XP Feature Fix via Registry Tweak

File Explorer in Windows 11 has been reported to have performance issues, particularly delays when navigating folders with many media files or documents. This problem is linked to the auto-discovery feature, which optimizes folder display settings based on content but incurs a significant computational burden. Disabling this feature through registry modifications can lead to improved performance, with users experiencing faster navigation and reduced folder load times. Microsoft has acknowledged these issues and plans to preload File Explorer for quicker launches, but the underlying problems remain largely unaddressed. Users have shared their experiences and solutions, including registry tweaks that set folder types to "NotSpecified" to eliminate scanning overhead. Despite some incremental updates from Microsoft, many users still face core lags, prompting ongoing community-driven fixes and discussions about the need for deeper audits of legacy code.

Winsage

January 11, 2026

Admins finally get the power to uninstall Microsoft Copilot on Windows 11 Pro, Enterprise, and EDU versions — devices must meet specific conditions to allow the removal of the AI app

Microsoft has introduced a feature allowing administrators to uninstall the Microsoft Copilot App from managed devices using Windows 11 Insider Preview Build 26220.7535 (KB5072046). The uninstallation is governed by specific criteria: the system must have both Microsoft 365 Copilot and Microsoft Copilot installed, the Microsoft Copilot app must not have been installed by the user, and it must not have been launched in the past 28 days. Users will still have access to the Microsoft 365 Copilot app, which is a paid service, while the Microsoft Copilot app is complimentary and preinstalled on Windows 11.

Winsage

January 11, 2026

Microsoft Tests Uninstall Option for Copilot AI on Windows Devices

Microsoft is testing a new policy that allows IT administrators to completely uninstall its Copilot AI assistant from managed Windows devices. This policy, named “RemoveMicrosoftCopilotApp,” is being deployed through management tools like Intune and System Center Configuration Manager (SCCM) and addresses concerns about data privacy, resource consumption, and unwanted software in commercial settings. The feature is currently available in Windows 11 Insider Preview Build 26220.7535 (KB5072046) and reflects feedback from IT professionals who prefer controlled environments. While this option is exclusive to enterprise-tier Microsoft 365 subscribers, smaller businesses and individual users have limited options for removal. The policy aims to balance innovation with risk management, especially in regulated sectors like healthcare and finance, where data privacy is critical.

Winsage

January 11, 2026

Microsoft’s first Windows 11 preview build of 2026 brings more Copilot+ PC features to everyone

Microsoft has released its first Windows 11 preview build of the year, featuring an enhancement to the Narrator app that allows it to use Copilot for detailed image descriptions. This capability, previously available only to Copilot+ users, is now accessible to all Windows 11 devices, aiding blind and low-vision users. Additionally, Microsoft has improved the Cross Device Resume capability by introducing a new integration path via the Windows Notification System (WNS). The latest preview build is 26220.7535 (KB5072046) and is available through Windows Update for Insiders in the Dev or Beta Channel. Users are advised to switch to the Beta Channel to remain on the current 25H2 release, as the Dev Channel will soon change to higher build numbers, removing the option to switch between channels.

Winsage

January 10, 2026

Announcing Windows 11 Insider Preview Build 26220.7535 (Dev & Beta Channels)

Windows 11 Insider Preview Build 26220.7535 (KB5072046) has been released for both the Dev and Beta Channels. Insiders in the Dev Channel have a limited opportunity to switch to the Beta Channel, which will close soon. New features include Copilot-powered image descriptions in Narrator, which enhances accessibility for blind and low-vision users. Administrators can now uninstall the Microsoft Copilot app for specific users under certain conditions. Improvements include enhancements to Cross Device Resume for developers and a refresh of the Windows Spotlight icon. Fixes have been implemented for various issues in the Start menu, File Explorer, input methods, print dialogs, and Windows Update settings. Known issues include problems with the Xbox full-screen experience, Start menu access, system tray visibility, Settings crashes, Bluetooth battery level display, and the Microsoft 365 Copilot prompt box functionality. Updates are based on Windows 11, version 25H2, and features are rolled out gradually to Insiders.

Winsage

December 28, 2025

Microsoft Optimizes Windows 11 File Explorer to Slash RAM Usage

Microsoft is addressing criticism regarding Windows 11's File Explorer performance, particularly its excessive RAM consumption during searches. The company is testing optimizations aimed at reducing memory usage while maintaining speed, originating from an Insider Preview build. These changes involve eliminating duplicate indexing tasks, which could lead to a 20-30% reduction in RAM usage during intensive search sessions. Additionally, the update includes a streamlined context menu in File Explorer to enhance usability. Insider feedback has been positive, with users reporting smoother performance across various devices. The optimizations may also improve system stability and scalability in enterprise environments. However, some users express skepticism about whether these fixes are temporary solutions to deeper architectural issues. The full benefits of the update are expected to materialize once it reaches general availability, anticipated in early 2026.

Winsage

December 24, 2025

‘1 engineer, 1 month, 1 million lines of code’: Microsoft wants to replace C and C++ code with Rust by 2030 – but a senior engineer insists the company has no plans on using AI to rewrite Windows source code

Microsoft plans to phase out C and C++ in favor of Rust by 2030, as announced by Galen Hunt, a Distinguished Engineer at the company. AI will assist in large-scale code modifications, and the foundational infrastructure for this transition is already in place. Microsoft has been integrating Rust into its ecosystem, investing a million dollars in 2022 to establish it as a primary language for engineering systems. Rust-based kernel features have been introduced in Windows 11 Insider Preview Build 25905. Hunt clarified that the initiative is a research project aimed at facilitating migration between programming languages, not a complete rewrite of Windows in Rust with AI. Other tech companies, like Google, are also adopting Rust for its productivity and efficiency benefits, driven by security concerns related to C and C++. The US National Security Agency has recommended transitioning to memory-safe programming languages, including Rust.