I have no OS! help please!

Hi, I recently used partition magic to reformat my harddrive because it was being taken over by malware, but now, When i try to install windows XP pro on it, It won't let me continue. It comes up with an error message saying that the there is no detected harddrive, and won't go futher than loading the setup discs. I then tried to install linux and convert it to XP from there, but it still didn't work. At this point, I don't even know if getting a new harddrive would work. Help please! Thanks…

Replied to your post up in General hardware.. Regards Kaz