I hate stuff like this. What's the point of hiding the parameters, instead of tucking them away in the corner of the screen or something? It just makes things needlessly difficult.
I know the answer is going to be "but it makes the UI look beautiful and most users don't know what the parameters mean anyway!" Error UIs don't need to be beautiful, they need to be functional. Definitely have a nice, clear user-friendly error message, but keep the overall screen technically informative. I can imagine that the only thing more infuriating than having a computer that won't boot, is having one that won't tell you the problem unless you change registry settings (which you can't, because it can't boot). Leaving the extra information there does not harm, and it give people something to Google if they do run into a problem.