file system integrity

Hi

I am trying to use partition magic to merge my 8 gig c:\ drive with my
6 gig d:\ drive because I have run out of drive space in my c:\ drive.

When using partition magic I get an error that states:
File size does not match fat allocation for file size.

Can anyone tell me what this means and if it can be fixed?

insight appreciated
Thank You
Kevin


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