Microsoft Tackles Legacy UI in Windows 11: A Delicate Balance

Microsoft is slowly modernizing Windows 11's legacy UI, but the process is taking time due to the company's commitment to backward compatibility. According to Marcus Ash, CVP of Design and Research for Windows and Devices, the goal is to maintain the same functionality and performance as the old interfaces while introducing new designs.

The first step in this process was modernizing the Control Panel, which began with Windows 8 over 13 years ago. However, the work is still not complete, and Ash attributes this delay to Microsoft's focus on ensuring that modern replacements maintain legacy functionality. He explained that if a customer has a driver or application that depends on legacy functionality, they must be careful not to break compatibility.

Ash highlighted that designing and building new interfaces requires developing the necessary tooling and UI frameworks to support the required functionality. This is why Microsoft is pushing hard to modernize its UIs while maintaining legacy support. The company is also exploring ways to reduce the need for legacy apps and interfaces by improving tooling and approaches.

The process of choosing which legacy interfaces to modernize involves analyzing usage, telemetry, feedback, and user journeys. Ash confirmed that the goal is to gradually reduce the amount of legacy UI customers see in their day-to-day experience. The company is also looking at evolving its tooling to tackle more complex tasks like modernizing apps like the Registry Editor.