Hello, I am using Disk director v.10 (build 2160) to split my drive C partition and I am unable too. I have a HP computer which has a 320GB two partition. Drive C is used for the OS and drive D for the recovery system only. The computer has few other drivers which are card readers and not HD. When I try to split my drive this is what happens: I go trough the process in windows to split the partition C and then when I "commit" the change the system ask me to re-boot the computer. When the computer re-boots, the system goes trough a couple cycles in checking disc, partitions and whatever else is doing. Then, when the cycle it is finally done, I log back in windows and my partition C is exactly the way it was, did not split at all. I am not getting any error message when the cycle takes place. What's wrong?