not fully defragmented

After doing a defragmentation, why do I get left with 8% defragmentation on my drive C. When I defrag drive D, D goes to 0%,

- Perhaps some system files are skipped by Defraggler ? Are these files in "C:\System Volume Information" ?

the files are:

pagefile.sys SYSTEM FILE

when I tried to just defrag that one, got message:

Defrag Aborted

No files were defragmented

This operation cannot be done

- These files won't be moved by Defraggler at all.

this is ok :)

alternative you can also move the pagefile.sys file to drive D:, then full-defrag your drive c: and then recreate the pagefile.sys on drive c: (perhaps with fix size)