When defragging HD using Piriform's Defraggler, there is always a file
that's spread over a number of blocks and can't be consolidated.
Defraggler show a bit over 3500 blocks, each having a bit over 1/4 GB.
Path to the fragmented file is listed as "C:\System Volume
Information\", and the file accounts for over 5% of the HD.

Any "pearls of wisdom" relating to this, most welcome.