Microsoft has released Windows 11 Insider Preview Build 26220.7070 (KB5070300) to both Dev and Beta channels, marking another significant step in the ongoing refinement of Windows 11. This latest preview build introduces crucial enhancements to the Widgets experience and provides users with greater control over Smart App Control functionality, representing Microsoft's continued commitment to improving both user interface polish and security management capabilities.

What's New in Build 26220.7070

This incremental update focuses on two primary areas: Widgets improvements and Smart App Control management. While not a major feature release, the changes demonstrate Microsoft's attention to user feedback and their ongoing optimization of existing Windows 11 components.

Enhanced Widgets Experience

The Widgets board receives meaningful improvements in this build, building upon Microsoft's vision of providing users with quick access to personalized information. The updated Widgets interface offers smoother animations and more responsive interactions, addressing performance concerns raised by users in previous builds.

Key Widgets Improvements:

  • Faster loading times for widget content
  • Improved animation fluidity when opening and closing the Widgets board
  • Enhanced reliability of content updates across various widget types
  • Better memory management for widgets running in the background
  • Optimized touch and pen interactions for tablet users
Microsoft continues to refine the Widgets experience based on user feedback from the Insider program. The company has been working to balance functionality with system performance, ensuring that widgets provide value without significantly impacting system resources.

Smart App Control Toggle Enhancement

One of the most significant changes in Build 26220.7070 is the improved management interface for Smart App Control (SAC). This security feature, designed to prevent malware execution by blocking untrusted or unsigned applications, now offers users more granular control.

Smart App Control Updates:

  • Simplified toggle interface for enabling/disabling SAC
  • Clearer status indicators showing whether SAC is active
  • Improved explanation of what SAC does when users interact with the toggle
  • Better integration with Windows Security center
  • Enhanced compatibility reporting for applications affected by SAC
Smart App Control represents Microsoft's proactive approach to application security, using AI-powered analysis to determine application trustworthiness before execution. The enhanced toggle makes it easier for users to manage this feature based on their specific needs and workflow requirements.

Installation and Availability

Build 26220.7070 is available to Windows Insiders in both the Dev and Beta channels, delivered as an optional update through Windows Update. Users can access it by navigating to Settings > Windows Update and selecting \