Final answer:
To reformat a drive from FAT to NTFS without data loss, use the 'convert' tool in command prompt.
Step-by-step explanation:
To reformat a drive from FAT to NTFS without losing data, you can use the built-in Windows tool called 'convert'. This tool converts the file system without reformatting, allowing you to keep all your data. Here's how to use it:
- Open a command prompt by pressing 'Win + R', typing 'cmd', and pressing Enter.
- Type 'convert X: /fs:ntfs' (replace 'X' with the drive letter of the FAT drive), and press Enter.
- Follow the on-screen instructions if prompted. Once the conversion is complete, your drive will be NTFS.
Remember, it's always a good practice to back up important data before making any changes, just in case something goes wrong.