Ill try to make this as clear as possible: A friend of a friend replaced the old hard drive on my computer with a new one. We do not have a recovery disk and he did not back anything up on a peripheral. This means no operating system and no nothing as far as I'm aware. So i purchased Windows 7 but i cannot install it because I have no drivers (apparently) and I dont know which ones I need to get/download. Even if i were to get them I would need to install them and I am not sure how I would do that. Help!