I have Windows Vista installed on my computer and I am trying to do a partition in my primary drive. So, after when I shrink the volume then I get 30gb of unallocated space. After that when I start a new simple volume wizard until the final step then I was getting some error message that says that "The operation you selected will convert basic disk to dynamic disk" and if I select Yes then the operation will not be performed. So I am unable to format the drive and therefore cant use the unallocated space. Does anyone has some suggestions how to do parition in Vista. Thanks for any help.