Microsoft has rolled out Windows 11 Insider Preview Build 22635.4945 to Beta Channel users, delivering notable performance improvements and bug fixes ahead of the next major update. This build focuses on refining system stability, addressing user-reported issues, and enhancing core Windows 11 functionality.

What’s New in Build 22635.4945?

This latest Insider Preview build introduces several under-the-hood optimizations rather than flashy new features. Microsoft has prioritized performance tuning based on telemetry data and user feedback from previous builds.

Key Improvements:

  • File Explorer Enhancements: Reduced memory leaks and improved responsiveness when handling large file operations
  • Task Manager Optimizations: Smoother performance when monitoring system resources
  • Start Menu Reliability: Fixed several crashes reported by Insiders
  • Window Management: Improved Snap Layouts behavior for multi-monitor setups

Performance Benchmarks

Early testing shows measurable gains in several areas:

Metric Improvement
Cold Boot Time 8-12% faster
File Explorer Launch 15% quicker
Memory Usage 5-7% reduction

Notable Fixes

Microsoft addressed over two dozen specific issues in this build:

  • Resolved a bug causing excessive CPU usage in explorer.exe
  • Fixed Bluetooth connectivity drops with certain peripherals
  • Patched a security vulnerability in the Windows Kernel
  • Corrected display scaling issues on high-DPI monitors

Known Issues

While this build represents significant progress, some problems remain:

  • Occasional stuttering when using Windows Ink
  • Rare crashes in the Settings app when modifying display options
  • Some third-party widgets may fail to load properly

How to Get the Update

Beta Channel Insiders can download Build 22635.4945 through Windows Update:

  1. Open Settings > Windows Update
  2. Click "Check for updates"
  3. Select "Download and install"
  4. Restart when prompted

What This Means for the Next Windows 11 Release

These performance-focused updates suggest Microsoft is entering the final optimization phase before the next feature update. The company appears to be prioritizing system stability and responsiveness over introducing new capabilities at this stage.

User Feedback Implementation

Many of the fixes in this build directly address top-voted issues in the Feedback Hub, including:

  • High disk usage during idle periods
  • Unresponsive right-click menus
  • Delayed notification center animations

Microsoft has acknowledged these improvements are part of their ongoing effort to refine Windows 11 based on real-world usage patterns.

Looking Ahead

Insiders should expect more performance-focused builds in the coming weeks as Microsoft prepares for the next public release. The company continues to encourage users to report any issues through the Feedback Hub to help shape future updates.

For developers, this build includes updated SDK components that better support the latest performance optimization techniques in Windows 11.