For windows 10 'defrag' can do this. defrag /X If I remember from the last time I used it, it is not nice about it. It may create fragments. It consolidates

For windows 10 'defrag' can do this. defrag /X If I remember from the last time I used it, it is not nice about it. It may create fragments. It consolidates the free space to the end of the drive. Does not always work. Especially if the drive in question is active.