I have a hard drive that I have been using in an external enclosure to backup data. (Obviously it has already been partitioned and formatted.) I just built a computer and would like to use this HDD as the main drive in it. When I install windows XP Pro on this HDD, will it delete the data that is already on it. If so, is there a way to install windows xp pro without deleting my data? Thanks in advance for your help!