I have a server that has two hard drives, a C: and a D:. They both contain 186 gb each drive. Unfortunately my C drive is full, and I need to add D: to C's volume. I read that they both needed to be a Dynamic drive before merging them together, and I was able to convert D to a Dynamic drive. I was about to do C, but was concerned if it will remove any data currently on C. I wasn't sure if there is any formating involved, or will converting the C, which contains the operating system, would result in losing any data?