Sorry, but this is not about legit key, it is not either whether debug info is necessary for you. Remove it, modify it as you want, it is your computer. But you downloaded debug version, you agreed to help with development by downloading this version so spamming this forum with guides "How to remove debug means and make full version from beta" is a bit rude, does not help with development at all and only make this forum full of useless stuff. Unless the debug window somehow automatically sends info to you I don't see why do you care. 90% of people have no idea what any of it means anyway. Most of them are consumers not testers. W8 version's RC was also barely different from the late betas. Most of the bugs were caused by silly setups.