When I defrag my computer, which I do at least once a week now, this is the message I get at the end:

Findings on C:

Diskeeper has completed a defragmentation run on this volume and there remain 1276 fragmented files and 3508 excess file fragments. (There were 4806 excess file fragments before the defragmentation run, and now there are 27% less.)

The average number of fragments per file is 1.03.

You should schedule Diskeeper to run considerably more often than it has been running to reduce the current fragmentation and maintain a lower level of fragmentation. This volume is moderately fragmented, with 50% of the total volume space available for defragmentation.

The number of excess and fragmented files never go down more than this - could someone tell me what's happening and what I can do?