I want to partition my hard disk so I can run have two operating systems on the same computer. I currently have Windows Vista on my computer but I do not like it. I want install windows xp on a partitioned section on the hard disk. While I do not like Vista, I want to keep it. I got it pre-installed on my new computer, do not have the windows Vista DVD and I might want it later. Can anybody recommend a good partitioning utility program and some advise on this?