JokerPTknight/bank ? reverse-engineered prompt

Build me a simple Windows desktop app called SQR400 Flash Bank Master Tool.

I want a clean launcher that opens into a GUI mode, with a straightforward main screen, a few buttons to get started, and a polished old school utility feel. Make it easy to install and run on Windows, and include whatever basic setup or startup flow is needed so the user can open the tool and get into the main interface without confusion.

If you need to look up current docs or best practices for the platform, go ahead and do that. Keep the experience simple and reliable, with clear labels and a basic workflow that feels like a finished desktop utility. Include sensible error handling and make the app look presentable out of the box.