OK, about 6 months~a year ago, I soft modded my XBOX with Krayzie's 1.1 and put Unleash X as the user interface. It works fine, but I was so eager to try stuff out that I just put all kinds of emulators/roms/programs/etc. on there in a haphazard way. Now, I want to start fresh and install complete ROM sets rather than a few ROMs here and there as well as start fresh with the music and other applications. To do this, I want to delete anything and everything that isn't critical, which is where the problem comes in. I'm worried that I might delete a critical file and brick my XBOX. Is this possible? Are critical boot/runtime files blocked from deletion? Is it possible to re-install the soft mod and erase the drive at the same time? I'm not really worried about game saves or anything, so if anyone knows a program to do this or can confirm one way or another about the ability to delete critical files, I would appreciate it. Also, as a side note, I don't need any smart ass replies that don't even address the question, if you don't know, just don't say anything. I already posted this question at xboxscene, but they don't seem to know anything about it.