When I try to use my disk defrag, I get a message saying "Drive contents changed" and it starts all over again.  It has gotten as high as 91% complete, message showed up, and it started over.  When it starts over, it hasn't save any of what it did previously so it starts over from scratch.

Does this sound like it might be a virus or is this something I might be able to fix myself?

Diana Kranz

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