How to change/convert RAW to NTFS without data loss?

How to change/convert RAW file system to NTFS without data loss?
Example: Drive K became RAW file system and prompted "Drive is not formatted, do you want to format it now", how to convert/change RAW file system to NTFS without data loss and then fix RAW drive?
Detailed tutorial: http://www.m3datarecovery.com/raw-to-...

• #science_technology
• #m3_raw_drive_recovery
• #convert_raw_to_ntfs
• #fix_raw_drive