I was fortunate to read a recent thread about extended partitions in ADD 10 (2160): https://www.wilderssecurity.com/showthread.php?t=248765) In this thread, K0LO explains that "with Disk Director you can produce a partition structure that mixes primary and logical partitions...Windows will happily accept a layout like this, but Windows Disk Management will display it incorrectly because it expects all of the logical partitions to be adjacent to each other. Layouts that mix primary and logical partitions will produce some rather strange-looking displays when viewed by Windows Disk Management, but Disk Director will show them correctly." This was a great relief to me, because after working with ADD recently, I booted back into Windows XP and got the shock of my life when I viewed my partitions in Disk Management! Dispensing with the whole back story, here is where I'm at now: I have two internal hard disks. The first disk has two partitions - a system partition and a data partition. The second disk is one big extended partition which includes a logical partition at the beginning of the disk followed by free space. I want to create a primary partition out of the free space, into which I will install the Windows 7 RC. The Win 7 installer will setup a dual boot with Windows XP. Do I somehow 'shrink' the extended partition to make room for my primary partition? Or do I just create my primary partition in the free space and let ADD worry about shrinking the extended partition? Thanks for your help.