Microsoft has rolled out Windows 10 22H2 Build 19045.6029 (KB5061087) to the Release Preview Channel, bringing a host of refinements and fixes to the aging but still widely used operating system. Released on June 12, 2025, this update demonstrates Microsoft's ongoing commitment to supporting Windows 10 despite its focus on Windows 11 and upcoming releases.

Key Improvements in Build 19045.6029

1. Enhanced Security and Authentication

  • Device Registration Improvements: Microsoft has refined the device registration process for Azure Active Directory, making enterprise deployments more seamless.
  • Authentication Fixes: Resolved an issue where some users experienced authentication failures when using Windows Hello or biometric login methods.

2. System Stability and Performance

  • COM+ Component Fixes: Addressed a critical bug that caused system crashes when certain COM+ components were accessed.
  • File Server Optimization: Improved performance for SMB file shares, particularly in enterprise environments with high network traffic.

3. Browser and Default App Refinements

  • Browser Settings Reset Prevention: Fixed an issue where Edge settings would unexpectedly reset after updates.
  • PDF App Associations: Resolved conflicts that occurred when changing default PDF handlers between Edge and third-party applications.

4. Printer and Hardware Compatibility

  • Expanded Printer Support: Added compatibility updates for newer printer models from HP, Canon, and Brother.
  • Mobile Operator Profiles: Updated carrier settings for better 5G modem compatibility on supported devices.

Under-the-Hood Changes

cURL Library Update

Microsoft has updated the built-in cURL library to version 8.8.0, bringing improved security and performance for command-line web transfers and API interactions.

Language Pack Improvements

  • Fixed localization issues in several system dialogs
  • Improved right-to-left language support in the Start menu

Enterprise-Focused Enhancements

For business users, this update includes:
- Better Group Policy processing reliability
- Fixed issues with roaming user profiles
- Improved compatibility with legacy line-of-business applications

Should You Install This Update?

While this is a Release Preview build, early testing shows:
- Pros: Noticeable performance improvements, especially for enterprise scenarios
- Cons: Some reports of minor Start menu layout issues

Microsoft recommends this update for business users testing deployments, while general consumers may want to wait for the general release expected later this month.

Looking Ahead

This update demonstrates Microsoft's continued investment in Windows 10, which still powers millions of devices worldwide. With extended support continuing until October 2028, users can expect more quality-of-life improvements even as Microsoft focuses on newer Windows versions.