I have partitioned my hd into 3 drives. I installed Windows 8.1 on C drive and have used the OS until now. I realize I need windows 7. So I shink D Drive to create another partition - E drive where I would like to install the OS. But I gwt an error message stating that I the partition contains one or more dynamic volumes and thus cannot be used to install Windows. I google it up to only find that I need to convert my disk back to basic type to get over the problem. I don't want to install the software on a virtual machine. Do you know any solution to this issue ? Thank you very much in advance.