Microsoft has released the Windows 10 KB5058481 optional update, delivering critical fixes and reviving legacy features as the OS approaches its end-of-support deadline in October 2025. This substantial update addresses over two dozen issues while reintroducing functionality that bridges the gap between Windows 10 and Windows 11.

Key Improvements in KB5058481

The KB5058481 update (OS Build 19045.3758) includes several notable enhancements:

  • Return of the Seconds Display in System Clock: Microsoft has reinstated the ability to show seconds in the taskbar clock after removing it in a previous update. Users can enable this by right-clicking the taskbar > Taskbar settings > Taskbar behaviors > "Show seconds in system tray clock".

  • Improved Chinese Character Support: The update adds support for GB18030-2022 conformance level 2, ensuring better compatibility with modern Chinese character sets used in government and enterprise environments.

  • Chromium-Based App Font Fixes: Resolves blurry font rendering in Chromium-based applications (Edge, Chrome, etc.) when using certain display scaling configurations.

  • Mobile Operator Profile Updates: Includes updated profiles for 5G and LTE networks across global carriers, improving connectivity for enterprise mobile devices.

Critical Bug Fixes

Microsoft addressed several persistent issues affecting Windows 10 systems:

  • Fixed GDI (Graphics Device Interface) rendering problems causing application crashes
  • Resolved an issue where some European keyboards lost special character functionality after previous updates
  • Patched a memory leak in the Windows Subsystem for Linux (WSL)
  • Corrected problems with VPN connections dropping during sleep mode
  • Fixed an enterprise printing issue where some printers showed as offline

Enterprise and Security Enhancements

For business users, KB5058481 includes:

  • Improved compatibility with legacy line-of-business applications
  • Enhanced data privacy controls for European GDPR compliance
  • More granular control over optional update installations via Group Policy
  • Fixed an issue causing excessive network traffic from Windows Search in domain environments

Preparing for Windows 10 End of Support

With Windows 10's end of support approaching on October 14, 2025, this update represents Microsoft's balancing act between:

  • Maintaining functionality for organizations not ready to transition
  • Encouraging migration to Windows 11
  • Addressing critical issues without introducing major new features

Installation Notes

As an optional update, KB5058481 requires manual installation through:

  1. Settings > Update & Security > Windows Update
  2. Click "View optional updates"
  3. Select the KB5058481 update
  4. Click "Download and install"

Enterprise administrators can deploy the update through WSUS or Microsoft Endpoint Manager.

User Reactions and Microsoft's Feedback Loop

The reintroduction of clock seconds has been particularly welcomed by users, with many praising Microsoft for listening to feedback. This follows Microsoft's recent efforts to be more responsive to user requests through:

  • The Feedback Hub app
  • Windows Insider program
  • Direct enterprise customer channels

Looking Ahead

While Windows 10 enters its final phase, Microsoft continues to:

  • Support critical security and compatibility needs
  • Smooth the transition path to Windows 11
  • Maintain stability for enterprise environments

This update demonstrates Microsoft's commitment to supporting Windows 10 users while gradually shifting focus to Windows 11's ecosystem.