Can You Change File System from Raw to NTFS on a Hard Disk Drive?

FAQS: How can I change file system from Raw to NTFs?

Question: Well, I am trying to tell it clearly, but I am going to crazy with the problem still unsolved. How can I convert a drive (C:, D:, E:, F:) into NTFs without any data loss while the system says it is a RAW drive? There are many programs on my drive C and I don’t want to install them again. If it is impossible, is there any way to format drive D into NTFS? There are many important videos on drive D, so I really need to get them back. I have tried to convert the drive by using "convert d:/fs:ntfs", but I didn’t work. Every time I try this way, it says: "convert is not available for RAW drives". So please tell me how can I change file system from Raw to NTFs?