Unable to complete defrag

In trying to run defrag, the Analysis phase is interrupted by the following message: "The scan has been canceled because an error occurred in file:
c:\windows\inf\msmouse.pnf ". This has happened repeatedly. I do not have a Microsoft mouse installed; I have a Logitech. The file msmouse.pnf is, nevertheless, in the folder described. I would appreciate any suggestions as to what the problem might be.

Sam

 

Are you defragging in safe mode? If not try that. Less drivers will be loaded.

 

I was able to defrag in safe mode. Thanks for the tip.