Microsoft has rolled out Windows 10 Insider Preview Build 15046, delivering new Cortana features, refined app installation controls, and critical bug fixes for Fast Ring testers. This release offers another glimpse into the upcoming Windows 10 Creators Update, building on improvements introduced in earlier previews.

Key Features in Build 15046

1. Cortana Gets Smarter

  • Proactive Suggestions: Cortana now surfaces apps, files, and Edge browser history across devices—expanding beyond its previous Edge-only website recommendations.
  • UI Consistency: The Cortana search box reverts to a dark gray taskbar color after experimental changes in prior builds.

2. Granular App Installation Controls

Users can now restrict app sources via Settings > Apps > Apps & Features:

  • Allow apps from anywhere (default)
  • Warn before installing non-Store apps
  • Block non-Store apps entirely
    Attempting to install external apps triggers a warning with Store alternatives when available.

3. Security & Usability Tweaks

  • Windows Defender Icon: Now visible in the taskbar notification area with hover details.
  • Gaming Settings: Updated iconography in the Settings menu.
  • OOBE Improvements: Smoother translations during device setup.

Bug Fixes & Performance Boosts

Microsoft addressed several pain points, including:

Microsoft Edge Enhancements

  • Restored Shift+F10 context menu functionality.
  • Fixed password pasting in LastPass extensions.
  • Resolved tab-tearing input issues and random crashes.
  • Developer tools (F12) no longer spawn multiple windows or hide behind Edge.

System-Wide Fixes

  • PC Reset functionality restored.
  • Multi-DPI display drag-and-drop works again.
  • Windows Hello now functional on Surface Pro 4 and Surface Book.
  • Resolved taskbar/Edge freezes requiring explorer.exe restarts.

Known Issues

  • Update Failures: Some installations may stall at 71%—Microsoft provides a workaround guide.
  • Edge Developer Tools: May open behind active windows or exhibit focus-switching bugs.
  • Gaming Bugs: Full-screen games may minimize on launch; live broadcast screens intermittently flash green.

How to Access the Preview

Not a Windows Insider yet? Sign up here to test new builds early. For a full breakdown of fixes and known issues, refer to Microsoft’s official blog post.

Stay tuned for more updates as Microsoft refines the Creators Update ahead of its public release.

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