The benefit you&#x27;re describing is just end users already being familiar with the interface because it&#x27;s running Windows. That&#x27;s not the case here, the entire interface on this device is of the custom application itself. It doesn&#x27;t matter that the user already knows that the start button can be used to launch new programs, they&#x27;re never going to see any hint that the device is built around Windows unless it&#x27;s broken. There are numerous disadvantages to using Windows for a heart monitor, everyone else has described this to death but the only real benefit to using Windows is that development doesn&#x27;t require a software developer competent with embedded work. Now they can hire any Tom, Dick, and Harry from the local community college because it&#x27;s just a Windows app.