My computer has two hard disk partitions, that is C: and D:, C: partition is about 30 GB and D: partition is about 50GB. In D: There are lot of my important data and I can't lose them, so I cannot format it.
Currently, I have Ubuntu 10.04 on C: partition. I would like to replace it with Windows 7 Ultimate. But I have a doubt about partitioning disk during the installation. Can I install Windows 7 Ultimate without formatting D: ?