Cause
This error occurs if the file read operation is incomplete. A file read operation failed to transfer the requested amount of data from the physical disk file.
This error will not occur when a sequential read reaches or attempts to read beyond the end of file, which sets the file status to end-of-file. The error is therefore an indication that the file has been corrupted or a hardware error occurred on the device containing the file.
Action
Use a disk verification utility to verify the file or the device containing the file (or both).