Windows App Usability Analysis

I'm seeking a proficient software tester to conduct a comprehensive usability analysis of my application, designed to operate on any Windows device.

The testing should thoroughly cover these aspects:
- User Interface Design: The app's aesthetic and functional design needs to be evaluated with meticulous attention to detail.
- Navigation Flow: The tester needs to assess the app’s navigation and ensure it's intuitive and seamless.
- Error Handling: I need to understand how the app deals with user mistakes and system issues. Uncovering these errors is key to enhancing its robustness.

The core objective of this project is to greatly improve the user experience. Therefore, the ideal candidate should be experienced in usability testing, with a deep understanding of user experience principles on Windows platforms. You should be able to provide actionable feedback to help me refine the user interface, navigation flow, and error handling mechanisms. Let's work together to make this app truly user-friendly and reliable.