Master how to optimize windows can not set the finishing c debris disk?

I have a computer on how to optimize the master disk c can not defragment this? Optimization can master the other disk, but disk c finishing time progress bar has been fixed, no matter how long, and so is the case, how the case ah ?

C disk file system can not be changed after the F8 boot in Safe Mode can organize one of the reasons is because it is mounted on a plate C, C while finishing plate, which may have its own mobile (if it is necessary finishing position), it is not possible to carry out; recommend the use of the system of self-sorting procedures.1, WINDOWS optimize the only master of the remaining space in the 15 % Of the implementation of the disk defragmentation.

2, the defragmentation process is slow in general.

3, finishing the disk is pre-analysis of the disk,
blue paper is the (non-system ), Is a red paper debris, both of which can be mobile.
Green is a system file (file system is not moving).

These, and the remaining 15% in the space below the disk can be Finishing, but very slow very slow.