If you want to change your NTFS partitions in Vista, Windows partitioner won’t do the trick. It is limited on what kind of partitions can be shrunk or expanded. The all-star freeware software to do the trick is Partition Master. It was easy to use, would let me change whatever partitions I wanted, and it did everything pretty fast. Now our My Book 500GB external drive has 3 partitions, 2 of which are NTFS which will allow me to put large virtual drives on there. Some say Partition Magic is good, but I found no need to try it after using Partition Master.