Microsoft’s Transition to WinUI on Windows 11
In early February 2023, Microsoft initiated a significant shift from the DirectUI framework to WinUI on Windows 11. For those unfamiliar, WinUI serves as the core user interface framework within the Windows App SDK, essential for developing applications tailored for Windows 11. Similar to the Windows Presentation Foundation (WPF), WinUI is also built on XAML, facilitating a modern and responsive design approach.
Recent Developments and Bug Reports
This week, Microsoft shed light on various issues plaguing both enterprise and home users, particularly regarding user interface (UI) and user experience (UX) bugs that have persisted since the launch of Windows 11 nearly four years ago. Notably, the latest update, KB5070311, has been linked to visual artifacts reminiscent of “flashbang”effects within File Explorer when dark mode is activated.
The Growing Appeal of Third-Party Solutions
These ongoing challenges may explain why many users are exploring third-party applications like FluentFlyout, which often enhance functionality beyond the native options provided by Microsoft.
User-Identified Workarounds
In a notable turn of events, tech enthusiast Bob Pony shared a potential workaround that addresses the flashbang issue in File Explorer. By disabling WinUI elements, users can reportedly eliminate the visual artifacts while also enjoying improved performance; File Explorer not only loads faster but also shows a remarkable reduction in memory usage. Pony emphasizes that the memory footprint decreased by 69% when transitioning to a non-WinUI version of File Explorer.
When disabling the WinUI based elements of File Explorer in Windows 11, not only it fixes the flash bang introduced in the recent preview update and makes File Explorer open faster, it also reduces its memory usage by 69%! pic.twitter.com/FkXqDuj8Ta
— BobPony.com (@TheBobPony) December 4, 2025
Exploring Alternative Interfaces
For those looking to customize their experience further, third-party applications like ExplorerPatcher can provide options to modify the command bar in Windows 11. Users can switch from the current command bar to classic variations, such as the Windows 10 Ribbon or the Windows 7 Command Bar, thereby enhancing usability.
Hopes for Improvement
As Microsoft continues to develop WinUI, which is scheduled to be open-sourced, many users express optimism that upcoming updates will resolve existing issues and significantly enhance the Windows 11 experience.
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