Microsoft Is Testing a Modern Windows 11 Registry Editor Built With WinUI 3

Microsoft has developed a modern version of Registry Editor using WinUI 3, bringing a Windows 11-style interface to one of the operating system’s oldest tools. The application already supports basic registry editing, but Microsoft has not confirmed plans to release it.

According to Windows Latest, the application appeared in Microsoft’s open-source Microsoft.UI.Reactor repository. The publication compiled and tested the prototype on Windows 11, confirming that it works with the actual Windows Registry.

Modern Registry Editor brings WinUI 3 design to Windows 11

The new Registry Editor keeps the familiar two-pane layout, with registry keys on the left and their values on the right. However, it replaces the traditional interface with modern WinUI 3 controls, updated menus, and Windows 11’s Mica background effects.

Microsoft has also updated the address bar and status bar, while smoother animations and window resizing make the application feel more consistent with other Windows 11 tools.

Windows Latest tested the prototype on Windows 11 Build 26340.9882 and reported performance comparable to the existing Registry Editor.

Unlike a design concept, the application can access and modify the actual Windows Registry.

Basic registry editing works, but several features are missing

The experimental Registry Editor already supports basic operations, including modifying registry keys and values.

It uses Microsoft.Win32 APIs to interact with the registry and includes error handling for protected keys that require additional permissions.

However, several important features remain unfinished. These include registry file importing, permission management, and loading or unloading registry hives.

Will Microsoft replace the existing Registry Editor?

Microsoft has not announced plans to introduce the modern Registry Editor in Windows 11. For now, the application remains an experimental developer sample rather than an upcoming Windows feature.

The prototype would need more functionality and stability testing before Microsoft could consider replacing the existing utility. Anyone interested in experimenting with it should use a virtual machine, since incorrect registry changes can cause serious system problems.

The project also follows other efforts to update older Windows interfaces. Microsoft is modernizing Windows 11’s Print Management tool, while a recent Windows 11 Beta build introduced a redesigned AutoPlay interface.

For now, the traditional Registry Editor remains the standard tool in Windows 11, and Microsoft has provided no release timeline for its modern alternative.