Error Message:

Error during disk write

Explanation:

During a file system conversion from FAT to NTFS, the Convert utility was unable to write a structure that is part of the NTFS file system description.

User Action:

The FAT partition is still in its original (unconverted) state. Run the Chkdsk command with the /r option on the FAT partition to map out bad (unwriteable) sectors. Then try the conversion again.