A disk error occurred during writing of the file allocation tab

Hello,
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The file or directory is corrupted and unreadable.

I have tried chkdsk /f d:
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it says,

The type of the file system is FAT32.
Volume Serial Number is D806-A017
The specified disk appears to be a non-Windows XP disk.
Updating FAT media type.
The \ entry contains a nonvalid link.
Windows is verifying files and folders...
File and folder verification is complete.

Windows has made corrections to the file system.
No further action is required.
32,751,616 KB total disk space.
32,751,600 KB are available.

16,384 bytes in each allocation unit.
2,046,976 total allocation units on disk.
2,046,975 allocation units available on disk.
A disk error occurred during writing of the file allocation table.